1. Not both of them serve the purpose. 并非两者都适合于这个用途。
2. Our purpose is to reform criminal rather than punish them. 我们的目的是改造罪犯，而不是惩罚他们。
3. Its purpose was to help society rather than to help inventors. 他的目的是为了帮助整个社会，而不是发明者。
1. an anticipated outcome that is intended or that guides your planned actions
2. what something is used for
3. the quality of being determined to do or achieve something v.
1. propose or intend
2. reach a decision