该层次结构的底部是任务，任务是流程活动的基本组成部分。

At the bottom of the hierarchy is a task, the basic element of process activity.

youdao

该层次结构的底部是任务，任务是流程活动的基本组成部分。

At the bottom of the hierarchy is a task, the basic element of process activity.

youdao