名词
中文翻译：Unknown
同义词：
['circulate', "circulation例句：1. The blood circulation is essential for the body's health.（血液循环对于身体健康至关重要。）2. The water circulation in the river is very important for the ecosystem.（河流中的水循环对生态系统非常重要。）"]
例句：
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1. The blood circulation is essential for the body's health.
血液循环对于身体健康至关重要。
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2. The water circulation in the river is very important for the ecosystem.
河流中的水循环对生态系统非常重要。
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3. The company's stock circulation has been increasing steadily.
该公司的股票流通量一直在稳步增加。