fever/'fiːvər $ -vər/

n. an illness in which the body temperature is higher than usual

n. [C; U] 发烧；发热：She's got a high/low fever. 她发高/低烧了。

◇The viruses often cause fever. 这些病毒常导致发烧。

常犯错误

✗ He's had fever for two days.

✓ He's had a fever for two days. 他发烧有两天了。