Hóng xuèxìbāo fùzé yùnshū yǎngqì.
Red blood cells are responsible for transporting oxygen.
Yīshēng jiǎnchá le tā de xuèxìbāo shùliàng.
The doctor checked his blood cell count.
Bái xuèxìbāo zài miǎnyì xìtǒng zhōng qǐ zhezhòng yào zuòyòng.
White blood cells play an important role in the immune system.
