前缀pro的单词：
progress 进步（pro+gress走→向前走）。
project 投射出;工程项目(pro+ject+扔+扔向前面→投射;引申为工程项目) 。
prologue 前言,序言(pro+logue说→在前面说→前言) 。
We must not become complacent about progress.
我们决不能因进步变得自满。
There wasn't much traffic so we made good progress.
来往车辆不多，所以我们开得很快。
Resources are being redirected to this important new project.
为这一重要的'新项目重新调配了资源。
The project is still causing him a lot of problems.
这项工程现在仍然给他带来许多的麻烦。