Topslicing
下行水平分层崩落采矿法
🗣️ 情景例句
Happy Mother's day!
母亲节快乐。
The smith is making shoes for a horse while braining his cat.
铁匠在煅马蹄铁时，他的猫听得头铛铛作响。
We'll need all our orders packed that way from now on.
今后我们所有的货都要照样包装。