Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
Seriously, thank you all for coming and taking part in our camp.
说真的，谢谢你们来加入我们的野营。
We have just moved into a new house and I have been working hard all morning.
我们刚刚搬进一所新房子，我辛辛苦苦地干了整整一个上午。