Polycythemia
n. 红细胞增多症, 红血球增多症\\n[医] 红细胞增多
🗣️ 情景例句
that I wasn't sure.
我说我不能确定。
I know the boy whose father is a banker.
我知道那个男孩的父亲是银行家。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。