Subvolution
[医] 翻转术
🗣️ 情景例句
Thanks, Grandpa.
谢谢你 ，爷爷。
Well, I think it's time we get back to business.
哦，我认为我们该回到正题上了。
His parents did not know what was wrong.
他的父母亲不知道他有什么毛病。