Retropulsion
n. 后退\\n[医] 后退, 后退步态, 后冲步态
🗣️ 情景例句
I think I'm quite proficient in both written and spoken English.
我认为我在英语读写方面相当熟练。
Light come, light go.
来得容易，去得快。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？