laughter.is.the.sun.that.laughter.is.the.sun.that.drives.winter.from.the.humour.face.句子中that.成分及作用

问题描述:

laughter.is.the.sun.that.
laughter.is.the.sun.that.drives.winter.from.the.humour.face.句子中that.成分及作用

引导定语从句,在从句中充当主语