重点讲解:
1. at least (数量)至少,不少于;
例句:Officials did not release exact figures for the contract but the project is estimated to be worth at least five-point-three billion dollars.
有关官员没有公布协议的具体数字,但是估计这一项目价值至少53亿美元 。
2. why not (表示建议)为什么(不);
例句:Why not give Claire a call?
为什么不给克莱尔打个电话?
3. derive from (使)起源于;(使)来自;
例句:Anna's strength is derived from her parents and her sisters.
安娜的坚强源自于她的父母和姐姐们 。
4. help to do sth. 帮助;帮忙;
例句:He has helped to raise a lot of money.
他帮着筹集了很多钱 。
adj. 被识别的;经鉴定的;被认同者 v. 鉴定(id