Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
Hi Leo, do you know Jack Wang?
嗨，利奥，你知道杰克王吗？
I won't argue with you,but I think you're being unfair.
我不会与你争论，但是我认为你不公平。
He's over there. He's cleaning the car.
他在那边，在洗车。