Backknee
[医] 膝反屈
🗣️ 情景例句
I'll think about it and call you back soon, OK?
我考虑一下，回头我尽快打电话给你，好吗？
Why are you standing behind the door?
你为什么站在门后？
Earlier, we were infants and young children, and consequently more vulnerable;
再早一些，我们是幼儿和小孩子，身体较脆弱；