Pods
abbr. 资料库系统规则（Principles of Database Systems）
🗣️ 情景例句
We enjoyed our trip to Europe.
这次到欧洲旅行，我们非常愉快。
I ask him to see the doctor.
我要求他去看医生。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。