Backknee
[医] 膝反屈
🗣️ 情景例句
Who's your favorite celebrith?
你最崇拜的名人是谁？
Please be serious for a minute, this is very important.
请严肃点，这件事很重要。
Of course, sometimes we're together too often, and we fight.
当然，有时候我们在一起太多而打起架来。