Helf
[医][=human embryonic lung fibroblast]人胚肺成纤维细胞
🗣️ 情景例句
This is fun.
很有意思。
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
Before he returned to India, he decided to live as a poor man and not to possess wealth.
在回印度之前，他已决心过穷人一样的生活，不占有财富。