Underreamer
扩孔器
🗣️ 情景例句
I guess I am.
我想是吧。
Mr. Jones spent his undergraduate days at Columbia.
琼斯先生在哥伦比亚大学渡过了他的大学时代。
I say, shall we go downtown this evening?
喂，今晚我们上街怎么样？