Backknee
[医] 膝反屈
🗣️ 情景例句
Seeing as you are all so tired, we'll finish this lesson next time.
考虑到现在你们都很累了，这课我们下次接着讲吧。
Why does only one sock get lost at a time?
为什么袜子只丢了一只呢？
After a great many loud explosions, the race began.
在好一阵喧闹的爆炸声之后，比赛开始了。