Nafs
abbr. National Association of Foot Specialists 全国食品专家协会; National Association of Forensic Sciences 全国辩论学协会
🗣️ 情景例句
There! You look very attractive.
天 你看起来真帅
I'm very sorry. Can I get you another one?
非常抱歉。能不能另外给你买一条呢？
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。