Is that septic-tank dislodges COD's a number like efficiency?

化粪池去除COD的效率一般是多少？

A player makes a practice swing in the rough and dislodges a concealed ball.

一名球员在长草区练习挥杆，结果驱逐了一个隐蔽的球。

The plastic bag dislodges from the porthole in the wall and the water drains from the room below him.

塞住排水管孔道的那个塑料袋被拉了出来，水从孔道中排了出去。