Tpf
[医][=thymocyte proliferation factor]胸腺细胞增生因子
🗣️ 情景例句
I'm sorry I missed him. I had to work late.
很抱歉我错过了他醒着的时候。我必须工作到很晚。
The vacuum cleaner is making a funny noise.
吸尘器发出怪异的声音。
Sorry. I'm free every day except today.
对不起。我每天都有空，唯独今天没空。