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ragweed(pollen antigen)的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 ragweed:
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widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
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any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
