Pdk
[医][=primary dog kidney]原代狗肾（细胞）
🗣️ 情景例句
Run it by me again, if you don't mind.
不介意的话，请再说一遍。
He who would search for pearls must dive below(or deep).
欲寻珍珠，须潜水下。
Chinese take-away food is also popular.
中式方便食品也很流行。