Conversational device
[计] 对话设备
🧩 词语组成解析
conversational
[ˌkɔnvə'seiʃənl]
adj. 会话的，谈话的;健谈的，善应酬的;[计]对话的，双向的;
🗣️ 情景例句
I work part time at the gasstation.
我在加油站做兼职工作。
Overdone is worse than undone.
过犹不及。
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。