名词
中文翻译：劳动
同义词：
['work', 'effort', 'toil']
例句：
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1. The workers are hard at work on the construction site.
工人们正在工地上辛勤工作。
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2. He has been laboring for hours without rest.
他已经连续工作了几个小时没有休息。
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3. Labor unions play an important role in the workplace.
劳工联盟在职场中扮演着重要的角色。