动词
中文翻译：用力
同义词：
['strengthen', 'exert', 'exert oneself']
例句：
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1. She used her strength tolift the heavy box.
她用力把重箱子举起来。
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2. He exerted all hisstrength to push the car forward.
他使出全身力气推动汽车前进。
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3. The athletesexerted themselves to win the gold medal.
运动员们竭尽全力赢得了金牌。