Pdk
[医][=primary dog kidney]原代狗肾（细胞）
🗣️ 情景例句
It was dumb of you to say that.
你说那种话真的是太愚蠢了。
I will be very glad when I receive the letter.
如能接到你的来信，我将会非常高兴。
and of what had previously been wrong with his wife,
也不知道他妻子以前得的是什么病，