efficient
[ɪˈfɪʃənt]
adj.
有效率的;
（直接）生效的;
能干的;
（因省钱、省时或省力等而）收效大的;
例句:
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The pill is the most efficient method of birth control.
服用避孕药是最有效的避孕方法。
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These people are very efficient, very organized and excellent time managers.
这些人做事效率很高，井井有条，并且十分善于管理时间。
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The process of replication is very quick and efficient.
复制的过程快捷、高效。
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That was the difference, Wales were more efficient.
来自BBC
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He recently invested in a fuel-efficient, diesel Volkswagen.
来自WSJ
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To be sure, not all ETFs are tax-efficient.
来自WSJ
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She is an efficient manageress.
她是一个有能力的经理。
来自《权威词典》
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This machine is efficient.
这台机器效率高。
来自《权威词典》