There shall not be any use of forced labor, whether in the form of prison labor, indentured labor, bonded labor or otherwise.

即使是监狱劳工﹑契约劳动﹑抵押做工或其他形式的劳力，它也不应该有强迫劳动的性质存在。

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And the use of forced labor, including prison labor.

逼迫劳工的利用，包含监狱中的劳工。

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One of the most powerful union leaders at a time that unions wielded a great deal of sway over elections -- and were notoriously tied to organized crime -- Hoffa was forced out of the organized labor movement when he was sent to prison in 1967.

CNN: STORY HIGHLIGHTS