名词
中文翻译：黑经济
同义词：
['unregulated economy', 'underground economy']
例句：
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1. Theblack economy is a growing concern for governments around the world.
黑经济是全世界政府日益关注的问题。
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2. The black economy is often associated with illegal activities such as drug trafficking.
黑经济通常与非法活动如毒品走私联系在一起。
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3. The black economy provides an alternative source of income for many people who cannot find work in the formal economy.
黑经济为许多人提供了在正规经济中找不到工作的替代收入来源。