Caravanner
乘有篷马车旅行者, <英>活动房居住者
🗣️ 情景例句
What kind of computers are you experienced in?
你熟悉哪种电脑？
Who is the mayor of this city?
谁是这城市的市长？
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。