来自拉丁语optare,选择，词源同option.

1. To keep the cost down, opt for a basic model.

要想花钱少些，就选择基本的型号。

2. Mr Wallace tries to co-opt rather than defeat his critics.

华莱士先生竭力拉拢而不是击败他的批评者们。

3. Under the agreement the Vietnamese can opt out at any time.

依据该协定，越南有权随时选择退出。

4. He didn't exactly opt out because he never opted in.

确切地说他并没有退出，因为他压根儿就没有参加。

5. He's been authorised to co-opt anyone he wants to join him.

他得到授权可以挑选自己想要的任何人加入他的团队。