英语词组back sth up是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	back sth up
释义	●ˌback ˈup●ˌback sth ˈupif traffic backs up or is backed up, it cannot move and forms a long line （车辆）拥堵，阻塞，排起长龙◆Two lanes were closed by the accident, causing cars to back up for miles. 事故导致两条车道被封，汽车拥塞长达几英里。◆The traffic is backed up to the traffic lights. 车辆在交通信号灯处堵住了。 NOTE Nearly always used in the passive. 几乎总是用于被动语态。[v + adv] [v + n/pron + adv] [v + adv + n]
随便看	lock in on sth lock onto sth lockout lock sb away lock sb/sth in lock sb/sth out lock sb/sth out of sth lock sb up/away (informal) lock sth away lock sth away lock sth down (NAmE) lock sth in lock sth up lock sth up lock up lock-up lock up lock-up lock-up lock-up lock-up lock yourself away lock yourself in lock yourself out lock yourself out of sth

英语词组固定搭配大全包含8584条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。