形容词
中文翻译：无反应的
同义词：
['inactive', 'passive', 'inertia']
例句：
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1. The material is inert until it comes into contact with an electric current.
该材料在接触电流之前是无反应的。
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2. The inert gas was released into the atmosphere.
惰性气体被释放到大气中。
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3. The inert substance was left undisturbed for several hours.
这个惰性物质被留置了几个小时。