Fepp
[医][=free erythrocyte protoporphyrin]游离红细胞原卟啉
🗣️ 情景例句
How long do you intend to stay?
你打算在这儿呆多久？
He must have three more weeks of rest before he is released.
他在出院以前，还需要三周时间的静养。
These?
这几只？