1.plummet v. 暴跌;速降
例句:The Prime Minister's popularity has plummeted to an all-time low in recent weeks.
首相的支持率在近几个星期已骤跌至前所未有的低点 。
2.overtake v. 超过;赶上
例句:He tried to overtake three cars on a blind corner and crashed head-on into a lorry.
他试图在一个死角处超过前面的三辆车,结果一头撞在了一辆卡车上 。