purpose 
英 [ˈpɜːpəs]  美 [ˈpɜːrpəs] 
n. 目的；意志；用途；意义

v. 有意，打算

例句：
She never picked up a newspaper except for the purpose of starting a fire in the wood stove. 

她只有在给柴炉引火时才会拿起报纸。

I want it clear, for the purposes of this discussion, that it wasn't actually a gift. 

为了这次讨论，我想澄清一下，它其实不是一件礼物。

What was your real purpose in coming to see me? 

你来看我的真正目的是什么？

Doubtless, when it suited his purpose, he would reveal it to me. 

毋庸置疑，当事情合他的意时，他就会向我透露。

He was asked about casualties, but said it would serve no purpose to count bodies. 

有人问他伤亡人数，不过他说清点尸体是没用的。

Oils have been used for medicinal purposes for thousands of years. 

几千年来油一直被用于医学目的。

the use of nuclear energy for military purposes 

核能在军事上的运用