Noisemaker
n. 发出嘈杂声的人, 噪音发生器
🗣️ 情景例句
Sheet is a five-letter word. Sheet
是五个字母的单字。
Not only did he make a promise, but he also kept it.
他不仅许下诺言，而且遵守了。
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。