柯林斯词典bird flu 1. N-UNCOUNT Bird flu is a virus that can be transmitted from chickens, ducks, and other birds to people. 禽流感 返回 bird flu剑桥词典an illness that kills birds and can sometimes pass from birds to people 禽流感（一種能導致禽類死亡，竝能傳染給人類的疾病） 返回 bird flu