Topslicing
下行水平分层崩落采矿法
🗣️ 情景例句
Yes.
是的。
Do you ever play basketball after school?
你曾经在放学后打篮球吗？
Below, the captain realized to his horror that the Titanic was sinking rapidly,
在下面，船长惊恐的地发现“泰坦尼克”号正在急速下沉，