大概1-2秒钟热水+1-2秒钟冷水，反复交替，大概4-5次吧。。。

来源: shuyezi 于 2019-07-15 00:50:59 [旧帖] [给我悄悄话] 本文已被阅读：次

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大概1-2秒钟热水+1-2秒钟冷水， 反复交替，大概4-5次吧。。。