Earwax is a protective material that contains bacteria-fighting elements, but it sometimes accumulates and has to be cleaned out because it can impede hearing or cause pain.

耳垢含有对抗细菌的成分，是一种保护性物质，但有时它会堆积成堆，影响听力或造成痛苦，因此必须被清理掉。

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Results indicate that all organic impurities can be cleaned out from NaSCN solution with this method.

结果表明，利用高温净化除杂方法，可以把硫氰酸钠中的有机杂质全部去除干净。

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The infected material must then be cleaned out completely and the drilled section filled in.

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They are relics of the Suharto era and should all be cleaned out.

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He was a little off mark: a cesspit can be cleaned out.

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