“前驱症状”的英语表达是 prodromal symptoms(其中“prodromal”意为“前驱的;先兆的” )或 prodrome(更侧重于指“前驱期;前驱症状群” ,不过在描述具体症状时,“prodromal symptoms”更为常用)。
例句:
Some patients may experience prodromal symptoms such as fatigue and headache before the main illness sets in.(一些患者在主要疾病发作前可能会出现疲劳和头痛等前驱症状。)
The doctor paid close attention to the prodromal symptoms to make an early diagnosis.(医生密切关注前驱症状,以便尽早做出诊断 。)