Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
Do you remember when Daddy and I used to take you
你还记得爸爸和我常带你
Hear all parties.
兼听则明。
Do you think you can follow our specifications for packing?
就照我们的指定方式装箱，没问题吧。