| 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] |