英语词汇“ragweeds”的意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

是什么意思

网络豕草类

英英释义

ragweed[ 'r?ɡwi:d ]

n.
- widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
  同义词：ragworttansy ragwortbenweedSenecio jacobaea
- any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
  同义词：ambrosiabitterweed

学习怎么用

权威例句

Ragweeds (Ambrosia L.) in Britain
Ragweeds (Ambrosia spp.): The Hay Fever Weeds
RAGWEEDS, AMBROSIA SPECIES, IN CANADA AND THEIR HISTORY IN POSTGLACIAL TIME
The North American ragweeds and their occurrence in other parts of the world.
THE MORPHOLOGY OF THE INFLORESCENCE OF RAGWEEDS (AMBROSIA〧RANSERIA : COMPOSITAE)
Ecological characteristics of the ragweeds and countemeasure of the biological weed control
FLOWERING BEHAVIOR AND NATURAL DISTRIBUTION OF THE EASTERN RAGWEEDS (AMBROSIA) AS AFFECTED BY LENGTH OF DAY
The Phytophagous Insect Faunas of the Ragweeds, Ambrosia chenopodiifolia, A. eriocentra , and A. ilicifolia , in Southern California
[Biological and clinical prevalence of pollinosis caused by ragweeds of the upper valley of the Rhone corridor]
Pollen-wall proteins: Localization of antigenic and allergenic proteins in the pollen grain walls of Ambrosia spp. (ragweeds)

单词	ragweeds
释义	ragweeds 是什么意思网络豕草类英英释义 ragweed[ 'r?ɡwi:d ] n. widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity 同义词：ragworttansy ragwortbenweedSenecio jacobaea any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma 同义词：ambrosiabitterweed 学习怎么用权威例句 Ragweeds (Ambrosia L.) in Britain Ragweeds (Ambrosia spp.): The Hay Fever Weeds RAGWEEDS, AMBROSIA SPECIES, IN CANADA AND THEIR HISTORY IN POSTGLACIAL TIME The North American ragweeds and their occurrence in other parts of the world. THE MORPHOLOGY OF THE INFLORESCENCE OF RAGWEEDS (AMBROSIA〧RANSERIA : COMPOSITAE) Ecological characteristics of the ragweeds and countemeasure of the biological weed control FLOWERING BEHAVIOR AND NATURAL DISTRIBUTION OF THE EASTERN RAGWEEDS (AMBROSIA) AS AFFECTED BY LENGTH OF DAY The Phytophagous Insect Faunas of the Ragweeds, Ambrosia chenopodiifolia, A. eriocentra , and A. ilicifolia , in Southern California [Biological and clinical prevalence of pollinosis caused by ragweeds of the upper valley of the Rhone corridor] Pollen-wall proteins: Localization of antigenic and allergenic proteins in the pollen grain walls of Ambrosia spp. (ragweeds)
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