Point man
[体]圈顶队员
🧩 词语组成解析
man
[mæn]
n. 男人;人类;男子汉;雇工;
vt. 使振作;操纵;给…配置人员;在…就位;
int. （表示惊讶、气愤等）嘿，天哪;
🗣️ 情景例句
When do you think we'll be through?
你认为我们什么时候能完毕？
Seriously, thank you all for coming and taking part in our camp.
说真的，谢谢你们来加入我们的野营。
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。