Underreamer
扩孔器
🗣️ 情景例句
Do your designs at home--here.
在家里设计服装。
The sleeping fox catches no poultry.
睡觉的狐狸抓不到鸡鸭。
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。