Billposting
n. 广告(或通告)张贴
🗣️ 情景例句
What's on my schedule for today?
我今天有什么日程安排？
Pam clearly saw in her mind what would happen.
柏姆无法明白究竟发生了什么事。
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。