名词
中文翻译：Unknown
同义词：
['trade', 'industry', 'commerce']
例句：
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1.The business of running a restaurant is very demanding.
经营一家餐厅的生意非常繁忙。
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2. He has been in the business for over 30 years.
他在这个行业工作了30多年。
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3.They are considering expanding their business overseas.
他们正在考虑将业务拓展到海外。