Choledochoscope
胆道镜; 胆管镜
🗣️ 情景例句
Please sit down, Alexandra.
请坐 ，Alexandra。
He reads a book every day.
他每天都读一本书。
Excuse me, please. Where's the nearest men's room?
劳驾，离这儿最近的男厕所在哪儿？