1 sentence

1. 血液中的白细胞在抵抗感染方面起着关键作用。

   xuè​yè zhōng de bái​xì​bāo zài dǐ​kàng gǎn​rǎn fāng​miàn qǐ zhe guān​jiàn zuò​yòng.

   White blood cells in the blood play a key role in fighting infections.

   Source: Dong Chinese Dictionary