1.in the first place 從一開始
I don't think we should have been there in the first place.
我認為我們從一開始就不該在那兒 。
2.foreign power外國勢力
Why should he have risked all that to become an agent of a foreign power?
為什么就該他冒失去這一切的風險做外國勢力的代理人呢?
3.opt in 決定參加
He proposed that only those countries which were willing and able should opt in to phase three
他提議只有那些有意愿而且有能力的國家才應參與第三階段 。
4.opt out 撤退
Under the agreement the Vietnamese can opt out at any time.
依據該協定,越南有權隨時選擇退出 。