这台凿岩机能钻透岩石.This drill can bore through rock.凿岩机是煤炭采掘不可缺少的工具.The rock drill is indispensable for digging coal mines.这种新式旋转凿岩机实际上是通过粉碎坚硬的岩石来开凿.The new rotary hammer virtually smashes its way through hard materials....
I hate to trouble you, but Aunt Lina's birthday is coming up and I would like to buy something nice for her.我真不愿打扰您，但莉娜阿姨的生日就要到了，我想给她买点好东西。Sis Lina is at a desk answering the questions about lodging.李纳姐妹在服务台上回答住宿的问题...