Pdk
[医][=primary dog kidney]原代狗肾（细胞）
🗣️ 情景例句
We have around 3,000 workers.
大约有3000名职工。
It will be very pleasant to go fishing with you.
跟你去钓鱼的话，将会很愉快。
Yes, he'll be all right soon. I'm sure of that!
是的，他很快就没事了。我肯定！