Liquid water changes to vapor, which is called evaporation
英语定语从句知识和用法概述(2) ... Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。 2）that前不能有介词。 This is the house in which I lived two years ago. 这是我两年前住过的房子。 ...
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... v. 介词+关系词 2）that前不能有介词。 this is the house in which i lived two years ago. 这是我两年前住过的房子。 ...
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短语
介词加关系代词
in which
介词+关系代词
He looked at the box from which the voice came