Pdk
[医][=primary dog kidney]原代狗肾（细胞）
🗣️ 情景例句
This must be a proud day for you.
今天是你值得骄傲的一天。
Do you often study history on Saturday?
你常常在星期六学历史吗？
Considering the amount she paid, he was dear in more ways than one!
想到她所花的那笔钱，她的心疼就具有双重意义了。