Altaic
a. 阿尔泰山的, 阿尔泰语系的
🗣️ 情景例句
I'm sure there's one for you.
我相信会有你喜欢的。
It's up to us to help those in need.
我们有责任帮助那些有困难的人。
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。