1. Before you start on these chapters, clear your head. 在你开始这些章之前,先理清思路。
2. I usually do a few very rough sketches before I start on a painting. 我开始作画之前通常要画几幅草图。
3. So we start on time and end on time. 我们准时开始,准时结束。
4. Before you start on your tour I'd just like to give you some information about things to look out for as you go. 在你开始旅行之前,我想给你讲一些旅行时的注意事项。
5. I was thinking about getting a head start on my next assignment while I am at the gallery in Connecticut, the assignment on miniatures. 趁我去康涅狄格美术馆的机会,我打算提前开始我下一份作业,关于微缩模型的作业。