ragweed / ˈrægˌwid /

⚽高中词汇豚草灰草布草猪笼草

ragweed 的定义

n. 名词 noun
  1. any of the composite plants of the genus Ambrosia, the airborne pollen of which is the most prevalent cause of autumnal hay fever, as the common North American species, A. trifida and A. artemisiifolia.

ragweed 近义词

ragweed

等同于 allergen

更多ragweed例句

  1. North America experiences tree pollen in the springtime, grass pollen in the summer and weed pollen, primarily ragweed, in the fall.
  2. The first half of September typically features the peak of ragweed pollen, if you’re sniffling these days.
  3. Of our ragweed not much can be set down that is complimentary, except that its name in the botany is Ambrosia, food of the gods.
  4. Golden ragweed blazed in all the fields, and the swallows began to assemble for their journey south.
  5. "Like a ragweed," she laughed, taking him into the kitchen, where she brought him a chair from the sitting-room.
  6. It is bounded on the north by goldenrod, on the south by ragweed, on the east by asthma and the pollen of anemophylous plants.
  7. Every year thousands of ragweed and groundsel seeds must be blown on to the shale-heap, but they never manage to grow there.