名词
中文翻译：非正式限制
同义词：
['unofficial restriction', 'informal restraint']
例句：
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1. The company has made several unofficial restrictions on the use of social media.
该公司对社交媒体的使用做出了几项非正式限制。
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2. The government has issued an informal restraint on the sale of firearms.
政府已经发布了一项非正式限制，禁止销售枪支。
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3. Due to the informal restrictions, we can't go out for dinner tonight.
由于这些非正式限制，我们今晚不能外出就餐。