| 释义 |
| | | | VERB | | | | | /flæg/ | | | | | 1 | I to become tired or weak , or begin to lack enthusiasm 疲乏；衰弱；低落；沮丧 | After a long day, his energy flagged. 经过漫长的一天后，他精疲力竭。 | | The conversation was flagging until the mention of her name. 谈话一直很低落，直到提起她的名字。 | | | | | 2 | T to mark something so that you will be able to find it again 标注；标记 | I flagged any words I didn’ t know. 我把不认识的单词标注出来。 | | | PHRASAL VERBS | | - | ˌflag ˈdown | | PHRASAL VB | | | | | to wave at the driver of a car so that they stop 招手拦（车） | tourists trying to flag down a cab 招手拦出租车的游客 | | | |