The amount of hemoglobin (the protein that carries oxygen) in the red blood cells.

红细胞内血红蛋白（携氧的蛋白）的量。

youdao

Hemoglobin is a protein in red blood cells.

血红蛋白是血红细胞中的一种蛋白。

youdao

Hemoglobin is found inside red blood cells.

血红蛋白可在红血球内找到。

youdao

Hemoglobin is found inside red blood cells.

血红蛋白可在红血球内找到。

youdao