非表面活性剂的添加剂称作助洗剂，长期以来用以改进表面活性剂的去污作用。

Nonsurfactant additives known as "builders" have long been used to improve detergent action of surfactants.

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就像山泉、洁净的湖水或纯净的海洋，水晶般清澈、透明，并富含使人年轻和去污作用的离子；

Crystal clear, transparent and full of all the rejuvenating and cleansing ions of a mountain stream, pristine lake or the purest ocean;

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试解释清洁剂在去污时的作用。

Explain the action of the detergents in this process.

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