preparative column

例句：

1. 1. The preparation forthe exam is extensive.
   为考试的准备是广泛的。
2. 2. The preparatory work for thenew project has already begun.
   新项目的准备工作已经开始了。
3. 3. The preparatory phase ofthe project is crucial to its success.
   项目的准备阶段对项目的成功至关重要。