Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
There must be some way to put my mind to good use.
总会有办法让我发挥才智。
Hush! Talk quietly.
嘘！请小声讲话。
They've got some beautiful pigs.
他们有一些漂亮的猪。