S.t.u.
[医] 皮肤试验单位
🗣️ 情景例句
Ah. She's out.
啊。她出去了。
He has never been out of China, so he is very excited about liveing abroad.
他以前从未出过国，因此对出国很兴奋。
I was waiting for the sound of the other shoe!
我一直在等待另一只鞋落地的响声！