Holing
[采矿]掏槽落煤法, [建]石板瓦钻孔
🗣️ 情景例句
I'd appreciate that.
谢谢你。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
Well, I've recently started biology.
喏，我最近开始学生物学了。