Samlet
n. 幼鲑
🗣️ 情景例句
You really are a fabulous designer, Marilyn.
真是一个绝佳的设计师， Marilyn。
How did this happen?
怎么会这样？
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。