Tpf
[医][=thymocyte proliferation factor]胸腺细胞增生因子
🗣️ 情景例句
I have to feed a family of five.
我不得不养活五口之家。
A rolling stone gathers no moss.
滚石不生苔，转业不聚财。
Let me see. It's about four thirty.
我看看，大约四点半了。