Retroflexio
[医] 后屈
🗣️ 情景例句
What's the schedule today?
今天的工作是怎么安排的？
When would you like to leave?
你要什么时间离开呢？
Why does aperson standing in a bus or train tend to fall when a sudden start is made?
一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢？