名词
中文翻译：黑工
同义词：
['unskilled worker', 'undocumented worker']
例句：
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1.He was caught by the police for blacklegging.
他因非法工作被警察抓获。
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2.Many immigrants are forced to work as blacklegs in order to survive.
许多移民被迫作为黑工工作以维持生计。
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3.The government is trying to crack down on blacklegging in order to improve the working conditions of undocumented workers.
政府正试图打击黑工现象，以改善无证工人的工作条件。