that's what it is there for.原句是 Why don’t you get some help from the graduate assistance.That’s what it is there for.
问题描述:
that's what it is there for.
原句是 Why don’t you get some help from the graduate assistance.That’s what it is there for.
答
那是他们在那里的原因。
为什么不向那些graduate assistance 求助,那是他们在那里的原因。
there副词前介词省略。
答
这就是它的存在。
答
那就是它存在的原因.
它就是为那存在的.
for what =why
所以原句可改为 That is why it is there.
这样你就理解了