Holing
[采矿]掏槽落煤法, [建]石板瓦钻孔
🗣️ 情景例句
You have that look in your eye.
你看起来好像有了主意似的。
We have thirty minutes to kill.
我们有三十分钟空闲时间。
the varieties are infinite; but two classes may be roughly seen.
鸟的飞行方式千差万别，但大体上可分为两类。