Choledochoscope
胆道镜; 胆管镜
🗣️ 情景例句
The sketches for the cover of the new doll book?
是新玩具书的封面设计吗？
Never put the plow before the oxen.
不要本末倒置。
When he learnt that he would be sent abroad, he returned to the farm and his father hid him until the end of the war.
当他了解自己将被派遣出国时，他逃回农场，父亲把他藏了起来，直到战争结束。