Bird flu
例子
Bird flu, also known as avian influenza, is a viral infection that primarily affects birds.
禽流感,也称为禽流感,是一种主要影响鸟类的病毒感染。
Some strains of bird flu can infect humans and cause severe respiratory illness.
某些禽流感毒株可以感染人类并导致严重的呼吸道疾病。



























