1.prevent from 制止
例句:Active cure of swoon patients was important to prevent from complications.
积极救治晕厥患者,对预防并发症有重要意义 。
2.drop out of 从……当中退出
例句:I had injured my leg and had to drop out of the race.
我伤了腿,只好退出竞赛 。
3.no matter 不论怎样
例句:No matter how hard everyone tried to persuade him, he just wouldn't listen.
不管大家怎么劝说,他高低不听 。
4.front-runner 领跑者
例句:Neither of the front-runners in the presidential election is a mainstream politician.
总统选举中的两位领先者都不是主流政治家 。