Phonolites
(phonolite 的复数) n. 响岩
🗣️ 情景例句
The weather couldn't have been better.
天气再好不过了。
He is wise that hath wit enough for his own affairs.
聪明的人有足够的才智处理自己的事情。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。