ragweed(pollen antigen)

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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:

1. widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity

2. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma