to do 不定式表目的I have tried all I can do to do sth.Mr Wang made up his mind to devote all he could to improving his oral English.为什么不能理解成为了做某事呢?介词to怎么能作目的状语呢?

问题描述:

to do 不定式表目的
I have tried all I can do to do sth.
Mr Wang made up his mind to devote all he could to improving his oral English.
为什么不能理解成为了做某事呢?介词to怎么能作目的状语呢?

devote.to ...致力于 中的to 是介词 不是不定式符号
这是固定结构,记住足矣
不懂继续问( 天天在线 )