preparathecium

例句：

1. 1.The preparatory work for the conference was meticulously organized.
   为会议所做的准备工作非常细致。
2. 2. The preparatory phase of the project is crucial to its success.
   项目的预备阶段对项目的成功至关重要。
3. 3.The preparatory work for the exams was extensive, covering all necessary topics.
   为了考试，准备工作做得很全面，涵盖了所有必要的主题。