ragweed
n. 豚草属
n.
豚草属；
英英释义
ragweed[ 'ræɡwi: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
权威例句
Competition and fecundity of giant ragweed in corn.Late asthmatic responses induced by ragweed pollen allergen
Immunotherapy with a ragweed-toll-like receptor 9 agonist vaccine for allergic rhinitis.
Computer image analysis and classification of giant ragweed seeds.
Seed Size and Burial Effects on Giant Ragweed (Ambrosia trifida) Emergence and Seed Demise
Use of an anti-IgE humanized monoclonal antibody in ragweed-induced allergic rhinitis.
IgE antibody measurements in ragweed hay fever. Relationship to clinical severity and the results of immunotherapy.
Conjugation of immunostimulatory DNA to the short ragweed allergen Amb a 1 enhances its immunogenicity and reduces its allergenicity...
Omalizumab pretreatment decreases acute reactions after rush immunotherapy for ragweed-induced seasonal allergic rhinitis
Effect of immunotherapy on immunoglobulin E and immunoglobulin G antibodies to ragweed antigens: A six-year prospective study ☆ ☆☆
ragweed (n.)
1790, from ragged + weed (n.); so called from shape of the leaves. Applied to a different plant (ragwort) from 1650s.
1. Ragweed pioneers idle fields.
豚草常是闲置耕地的先锋植物。
《21世纪大英汉词典》
2. 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。
www.youdict.com
3. 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。
www.youdict.com
4. 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。
www.youdict.com
5. " Persons may develop allergies after exposure to almost any substance, such as cat hair, ragweed, or house dust. Doctors do not know why only some individuals develop allergies."
有人几乎在接触任何物质后，如猫毛，豚草，室内灰尘，都会产生过敏反应。医生不知道为什么只有一部分人才出现过敏反应。
-- 来源 -- 英汉 - 翻译样例 - 生命
6. coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico.
生长于美国西南部和墨西哥干燥贫瘠土地的粗糙的多年生豚草，有匍匐根。
-- 来源 -- 汉英 - 翻译参考
7. plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia.
植物顶部有许多小花；紫苑；雏菊；蒲公英；白毛茛；万寿菊；莴苣；豚草属；向日葵；蓟；鱼尾菊。
-- 来源 -- 汉英 - 翻译参考
8. pollen of the ragweed plant is a common allergen.
豚草属植物的花粉是常见的过敏原。
-- 来源 -- 汉英 - 翻译参考
9. The following means of making a living are, according to New York City statues, illegal: the skinning of horses or cows, the growing of ragweed, and the burning of bones.
根据纽约自由雕像的宣言，下列谋生方式是不合法的：剥牛皮或马皮，种植豚草以及焚烧尸体。
-- 来源 -- english.hzinfo.com
ragweed
