Ragweed

['rægwiːd] or ['ræɡwid]

解释:

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

欧内斯特整理--From WordNet

解释:

(n.) A common American composite weed (Ambrosia artemisiaefolia) with finely divided leaves; hogweed.

艾布拉姆编辑