单词	house dust
释义	house dust noun : an airborne respiratory allergen of uncertain origin found about houses and held to be the chief cause of nonseasonal hay fever Word History First Known Use 1830, in the meaning defined above
随便看	hyosterna hyosternal hyosternum hyostylic hyostyly hyothere Hyotherium hyothyreoid hyp hyp- hypabyssal hypabyssally hypaethral hypaethrons hypalgias hypallactic hypallage hypallages hypandria hypandrium hypanthia hypanthial hypanthium hypanthiums hypantra

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