重点讲解：
1. go on 继续说下去；
例句：Meer cleared his throat several times before he went on.
梅尔清了几次嗓子，又接着往下说TQef=~4H3Ey。
2. first of all 首先；第一；
例句：First of all ,let us see how much it will cost.
首先，让我们看看它要花多少钱w@E2.yYG*S@n)G3WZ。
3. crank up 开大，调高；
例句：The manger wants us to crank up the production line.
管理人员希望我们提高生产线的作业速度!zr%+5uA7wan)7Lu。
4. throw up 呕吐；呕出；
例句：She said she had thrown up after reading reports of the trial.
她说，她看完审判报告后都吐了6(BtsQB(--MeImL@v。