名词
中文翻译：钾
同义词：
['potassium ion', 'potassium atom', 'potassium molecule']
例句：
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1. Potassium is an essential mineral for plant growth.
钾是植物生长所必需的矿物质。
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2. The doctor prescribed a potassium supplement to help him recover.
医生开了一种钾补充剂来帮助他恢复。
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3.Potassium is also important in maintaining healthy blood pressure.
钾在维持健康血压方面也很重要。