Velachero
[西]一种帆船
🗣️ 情景例句
I find that hard to swallow.
对这一点我难一相信。
I'm afraid I have some rather bad news for you.
我恐怕有些很坏的消息要告诉你。
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。