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	sub-basins sub-bass sub-basses sub-block sub-blocks sub-branch sub-branches sub-caste sub-castes sub-ceiling sub-ceilings sub-cellar sub-cellars sub-chapter sub-chapters sub-chief sub-chiefs sub-clan sub-clans sub-cloud car sub-cluster sub-clusters sub-code sub-codes sub-collection

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