Presplitting
预裂法(岩石开挖的方法)
🗣️ 情景例句
I haven't had a minute to relax all day.
我今天连一分钟都没休息。
What time does the train for Boston leaves?
去波士顿的火车几点开？
Master in his own house, he has little idea of when to say boo to a maitre d'hotel.
他们在家可能是主人，但不知道什么时候才能对酒店的经理表示不满。