separating clear and excreting turbid

例句：

1. 1. The two teams are separated by ariver.
   两队被一条河隔开。
2. 2. Thechildren were separating their toys whenthe teacher entered the room.
   当老师走进教室时，孩子们正在把玩具分开。
3. 3.The train was separating from thestation when it reached its destination.
   火车到达终点站时，正从车站分离出来。