XBB mainly invades the respiratory tract, rather than the digestive system.

XBB 主要侵入呼吸道，而不是消化系统。

Bleach, ammonia, and other products are capable of irritating the animal's respiratory tract, so always keep them in a safe place.

漂白剂、氨水和其他产品会刺激动物的呼吸道，所以一定要把这些清洁产品放在安全的地方。

The name respiratory syncytial virus comes from the virus causing cells lining the respiratory tract to merge, forming a large multinucleated " cell" called a syncytia.

呼吸道合胞病毒的命名源于该病毒会造成呼吸道内膜的细胞融合，形成多核巨“细胞”——合胞体。

Some lymphoid organs are in the form of diffuse lymphoid tissue, where they are just a loose arrangement of lymphoid cells and protein, this is typical in the lining of the gastrointestinal and respiratory tract.

一些淋巴器官以弥散淋巴组织的形式存在，它们只是由淋巴细胞和蛋白质松散排列而成，这在胃肠道和呼吸道的内层很典型。