Presplitting
预裂法(岩石开挖的方法)
🗣️ 情景例句
What's your occupation?
你的职业是什么？
There are three terms in a school year.
一学年有三个学期。
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。