perennial hay-fever

基本解释

• [物理学]非季节性枯草热

英汉例句

双语例句

• 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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专业释义

物理学

• 非季节性枯草热