Clean skin means plenty of lather followed by a rinse with water.

清洁的皮肤意味着用大量的皂沫清洗，然后用水冲洗。

《柯林斯英汉双解大词典》

Apply to wet skin, work into a rich lather and rinse clean.

涂在湿的皮肤上，产生丰富的肥皂泡，然后冲洗清洁。

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She needed to lather her hair to make sure it was clean.

她需要她的头发起泡确保这样洗得干净。

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