英语词汇perennial hay-fever怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	perennial hay-fever
释义	perennial hay-fever 简明释义常年性枯草热网络释义 1 ?常年性枯草热 ... perennial catarrh 释义：长年性枯草热 perennial hay-fever 释义：常年性枯草热 seasonal hay-fever 释义：季节性枯草热,花粉症 ... 双语例句 1 People who suffer from year-round hay fever (perennial rhinitis) may be allergic to persistent allergens in the environment coming from such sources as dust mites, mice, and cockroaches. 那些常年经历着过敏的人其过敏源可能是来自环境中的粉尘，老鼠，和蟑螂。
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