名词
中文翻译：疲劳
同义词：
['weariness', 'exhaustion例句：1. He was so tired after a long day at work that he fell asleep on the couch.（他在工作了一整天后非常累，于是在沙发上睡着了。）2. She felt her energy levels dropping as the night wore on.（随着夜晚的流逝，她感到自己的精力正在下降。）']
例句：
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1. He was so tired after a long day at work that he fell asleep on the couch.
他在工作了一整天后非常累，于是在沙发上睡着了。
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2. She felt her energy levels dropping as the night wore on.
随着夜晚的流逝，她感到自己的精力正在下降。
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3.The marathon runners were all exhausted by the end of the race.
马拉松跑者在比赛结束时都筋疲力尽了。