1.in proportion to (与……)成比例的
例句：
The room is wide in proportion to its height.
这房间就其高度的比例而言是很宽的。
2.for (the) purpose of为了
例句：
Allocate of money for a particular purpose
为某一特别目的拨钱
3.on purpose 故意，有意
例句：
Maybe he didn't do it on purpose.
也许他不是故意的。
4.with the purpose of 为了
例句：
They came here with the purpose of making trouble.
他们到这儿来就是为了找麻烦的。
5.in question 正在考虑
例句：
That is not the point in question.
那不是现在考虑的要点。