The flu is an illness in which you get a cold or a fever.

问题描述:

The flu is an illness in which you get a cold or a fever.

The flu is an illness (流感是一种疾病)in which(病中)you get a cold (你感觉发冷) or a fever (或发热).cold -- 英文 普通感冒和冷是同一个词“cold ”.流感叫 flu.H1N1 是 flu 的一种.bird flu 也是 flu ...