Unit 3 words and expressions1. annual adj. _ an annual meeting/event/report/income/sports meeting n. _ adv. _ The exhibition is held annually._.2. witness vt (1) _ _ 目击意外事故 _ （2）见证 证明过去的几年见证了我们家乡的巨变。_.（3）n 证明 目击者 见证人 be (a) witness to sthHe has been a witness to a terrible murder.give witness to sth I can give witness to his innocence. 3. pause v _a narrow escape _ a narrow victory_
