Definition
To remove obstacles or make necessary preparations in order to be ready for a particular task or activity.
清除障碍，准备行动。
Before we start the new project, we need to clear the decks of all the pending tasks.
在开始新项目之前，我们需要完成所有待办任务。
The manager asked us to clear the decks before the end of the quarter.
经理要求我们在季度结束前完成所有准备工作。
We need to clear the decks of all the old data before we can start analyzing the new figures.
我们需要清除所有旧数据，然后才能开始分析新数据。