ragweed

释义

• n. 豚草属

词源

ragweed (n.)

1790, from ragged + weed (n.); so called from shape of the leaves. Applied to a different plant (ragwort) from 1650s.

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.
• 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.
• 3. TOLAMBA is designed to target the underlying cause of seasonal allergic rhinitis caused by ragweed. TOLAMBA是针对由豕草引起的季节性变应性鼻炎的根本原因设计的.