exertions
n.
努力( exertion的名词复数 );
费力;
（能力、权力等的）运用;
行使;
例句:
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Thanks to the exertions of a few sensible and courageous men, the compromise was accepted.
由于少数明智且勇敢的人的努力，折中方案被采纳了。
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After two days' exertions, it's the arms and hands that seize up, not the legs.
两天的辛苦劳累过后，发僵的是胳膊和双手，腿倒没事。
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As long as they lived, exertions would not be necessary to her.
只要他们活着, 是不需要她吃苦的.
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Great exertions were made to screen him from justice.
来自W. Irving
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He moved to another place on the factory floor, and the exertions continued.
来自NEWYORKER
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Moody admitted the trip may have taken its toll and retirement could be an option if she does not recover from her exertions.
来自BBC