widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
双语例句
1. Limit your outside activities if you are bothered by ragweed and mold.
当你受豚草和霉菌困扰时,尽量限制户外活动.
来自互联网
2. Patients who demonstrated to severe rhinitis symptoms upon exposure to ragweed were admitted to the study.
暴露于豕草而激发严重鼻炎症状并证实得到缓解的患者加入该研究.
来自互联网
3. TOLAMBA is designed to target the underlying cause of seasonal allergic rhinitis caused by ragweed.