名词
中文翻译：暗交换
同义词：
['dark trade', 'dark deal', 'dark transaction']
例句：
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1. The company has been accused of engaging in dark exchanges to evade taxes.
该公司被指控进行黑暗交易以逃避税收。
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2. During the negotiations, they discussed the possibility of a dark exchange between the two countries.
在谈判期间，他们讨论了两国之间可能发生的黑暗交易的可能性。
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3. The dark exchange between the two parties was a source of tension and mistrust.
双方之间的黑暗交易是紧张和不信任的根源。