形容词
中文翻译：不可溶的
同义词：
['inert', 'incapable of dissolving例句：1. Copper is an insoluble metal that cannot be dissolved by water.（铜是一种不可溶金属，不能被水溶解。）']
例句：
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1. Copper is an insoluble metal that cannot be dissolved by water.
铜是一种不可溶金属，不能被水溶解。
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2.The mineral gypsum is insoluble and can only be dissolved by acids.
这种矿物石膏是难溶的，只能被酸溶解。
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3.The insoluble nature of the substance means it cannot be broken down into smaller particles.
物质的不可溶性质意味着它不能分解成更小的粒子。