|  |  | result  / effect  / efficacy  / (theater) sound or visual effects  | HSK 3 | 
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|  |  | efficiency  | HSK 4 | 
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|  |  | effect  / result  | HSK 5 | 
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|  |  | efficacy  | HSK 7-9 | 
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|  |  | benefit  / effectiveness  / efficiency  | HSK 7-9 | 
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|  |  | effective  / in effect  / valid  | HSK 3 | 
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|  |  | effectiveness  / positive effect  / to serve (in some capacity)  | HSK 7-9 | 
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|  |  | the Doppler effect  |  | 
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|  |  | timeliness  / period of viability or validity  / (law) prescription; limitation  / (metallurgy) aging  |  | 
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|  |  | not valid  / ineffective  / in vain  | HSK 6 | 
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|  |  | to produce the intended effect; to achieve the desired result  | HSK 7-9 | 
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|  |  | to show results; to be effective  | HSK 7-9 | 
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|  |  | efficient  / highly effective  | HSK 7-9 | 
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|  |  | healing efficacy; healing effect  | HSK 7-9 | 
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|  |  | effect (scientific phenomenon)  | HSK 7-9 | 
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|  |  | period of validity  / sell-by date  | HSK 7-9 | 
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|  |  | highly efficient  / effectivity  |  | 
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|  |  | usefulness  / effectiveness  / (economics) utility  |  | 
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|  |  | to fail  / to lose effectiveness  | HSK 7-9 | 
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|  |  | sensitivity to timing  / time-sensitive  / timeliness  |  | 
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|  |  | effect  / efficacy  / to imitate  |  | 
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|  |  | to serve (in some capacity)  / to work for  |  | 
|  | 
|  | 
|  |  | efficacy  / effectiveness  |  | 
|  | 
|  | 
|  |  | high efficiency  |  | 
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|  |  | animation effect  |  | 
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|  |  | laughable low-budget special effects  |  | 
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|  |  | highly effective  / fruitful  |  | 
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|  |  | greenhouse effect  |  | 
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|  |  |  | HSK 7-9 | 
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|  | 
|  |  | render service to repay kindness  |  | 
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|  |  | inefficient  / ineffective  |  | 
|  | 
|  | 
|  |  | actual effect  / practical result  / efficacy  |  | 
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|  | 
|  |  | effective action  |  | 
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|  | 
|  |  | subordinates follow the example of their superiors (idiom)  |  | 
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|  |  | spillover effect  |  | 
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|  |  | (of a law, contract, agreement, ban etc) to come into force; to go into effect; to become operative  | HSK 7-9 | 
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|  |  | sound effect  |  | 
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|  |  | urban heat island effect  |  | 
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|  |  | effective medicine for a specific condition  / highly effective medicine  |  | 
|  | 
|  | 
|  |  | to be effective (idiom)  |  | 
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|  |  | (idiom) to warn against following bad examples; as a warning to others  |  | 
|  | 
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|  |  | validity  |  | 
|  | 
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|  |  | wall effect  |  | 
|  | 
|  | 
|  |  | to follow a bad example  |  | 
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|  |  | key performance indicator (KPI)  |  | 
|  | 
|  | 
|  |  | within the period of validity  / before the sell-by date  |  | 
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|  |  | expiry date (of document)  |  | 
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|  | 
|  |  | "magnetic" force that attracts investment and talented individuals  / in particular, the attraction China has for people and capital from around the world  |  | 
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|  |  | energy efficiency  |  | 
|  | 
|  | 
|  |  | wondrous effect  / marvelous efficacy  |  | 
|  | 
|  | 
|  |  | to no avail  / achieving nothing  / totally ineffective  / to have no effect  / to fall flat (esp. of joke or speech that is completely ignored)  |  | 
|  | 
|  | 
|  |  | butterfly effect (dynamical systems theory)  |  | 
|  | 
|  | 
|  |  | to be effective over an extended period  | HSK 7-9 | 
|  | 
|  | 
|  |  | expiration date; expiry date  |  | 
|  | 
|  | 
|  |  | performance  / results  / achievement  |  | 
|  | 
|  | 
|  |  | oxygen effect  |  | 
|  | 
|  | 
|  |  | photoelectric effect  |  | 
|  | 
|  | 
|  |  | to copy; to imitate  |  | 
|  | 
|  | 
|  |  | domino effect  / ripple effect  |  | 
|  | 
|  | 
|  |  | (of a medicine, poison, strategy, action etc) to begin to produce its effect; to start working  |  | 
|  | 
|  | 
|  |  | (desired) effect  / (expected) result  / effective  |  | 
|  | 
|  | 
|  |  | to yield results  |  | 
|  | 
|  | 
|  |  | cost-effective  |  | 
|  | 
|  | 
|  |  | to render one's humble services  / to be at sb's beck and call  |  | 
|  | 
|  | 
|  |  | medicinal effect  |  | 
|  | 
|  | 
|  |  |  |  | 
|  | 
|  | 
|  |  | quick results  / fast-acting  |  | 
|  | 
|  | 
|  |  | to strive to get sth done while the timing is right  |  | 
|  | 
|  | 
|  |  | lit. Dong Shi imitates Xi Shi's frown (idiom)  / fig. to mimick sb's idiosyncrasies but make a fool of oneself  |  | 
|  | 
|  | 
|  |  | the chilling effect of a climate of fear in which people are afraid to speak their mind  |  | 
|  | 
|  | 
|  |  | equivalent megatonnage (EMT)  |  | 
|  | 
|  | 
|  |  | effectiveness of fertilizer  |  | 
|  | 
|  | 
|  |  | sound effect  |  | 
|  | 
|  | 
|  |  | to vow loyalty and devotion to  |  | 
|  | 
|  | 
|  |  | (law) period during which one can prosecute or sue sb (as stipulated by a statute of limitations)  |  | 
|  | 
|  | 
|  |  | equivalent; equal in effect  |  | 
|  | 
|  | 
|  |  | top-notch efficiency  |  | 
|  | 
|  | 
|  |  | sound effects  |  | 
|  | 
|  | 
|  |  | potency  / titer (measure of effective concentration in virology or chemical pathology, defined in terms of potency after dilution by titration)  / valence (perceived value in psychology)  / valency  |  | 
|  | 
|  | 
|  |  | consistency effect  |  | 
|  | 
|  | 
|  |  | position effect  |  | 
|  | 
|  | 
|  |  | specially good effect; special efficacy  / (cinema etc) special effects  |  | 
|  | 
|  | 
|  |  | rendering (visual representation of how things will turn out)  |  | 
|  | 
|  | 
|  |  | stochastic effect  |  | 
|  | 
|  | 
|  |  | quick-acting agent  |  | 
|  | 
|  | 
|  |  | unproductive social interaction  |  | 
|  | 
|  | 
|  |  | to imitate  / to follow the example of  |  | 
|  | 
|  | 
|  |  | synergy  |  | 
|  | 
|  | 
|  |  | fast-acting heart pills (a medication developed in China in 1982 to treat heart conditions including angina)  |  | 
|  | 
|  | 
|  |  | (law) statute of limitations  |  | 
|  | 
|  | 
|  |  | potency  / titer (measure of effective concentration in virology or chemical pathology, defined in terms of potency after dilution by titration)  |  | 
|  | 
|  | 
|  |  | volumetric efficiency (engine technology)  |  | 
|  | 
|  | 
|  |  | to show an effect  / to produce an effect  / a conspicuous effect  |  | 
|  | 
|  | 
|  |  | sensational effect  / wild reaction  |  | 
|  | 
|  | 
|  |  | after-effect  |  | 
|  | 
|  | 
|  |  | lighting effect  |  | 
|  | 
|  | 
|  |  | Casimir effect (attraction between two parallel metal plates due to quantum mechanical vacuum effects)  |  | 
|  | 
|  | 
|  |  | payload  |  | 
|  | 
|  | 
|  |  | to imitate (variant of 效 )  |  | 
|  | 
|  | 
|  |  |  |  | 
|  |