ragweed是什么意思 ragweed在线翻译 ragweed什么意思 ragweed的意思 ragweed的翻译 ragweed的解释 ragweed的发音 ragweed的同义词 ragweed的反义词

1. 豚草：第十一章 变态反应 北美温带地区的许多人担心8月的到来,因为豚草(ragweed)散出的花粉会使他们流鼻涕和打喷嚏,要用很多手帕和抗组胺药. 可怜的豚草为了繁殖,使我们受害. 一株草每天可以散布一百万粒花粉,大部分集中在早晨6-8点钟,

2. 猪草：March 12, 2003 (丹佛)- 连续六周注射与Amb a 1猪草(ragweed)过敏原有关的寡核甘酸(oligonucleotide)免疫刺激剂(ISS),其缓解猪草过敏的效果至少可达2年以上.

3. 公共查询·英语单词大全

3. 豚草属：weeds 野草 | ragweed 豚草属 | sage 鼠尾草

1. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma

    Synonym: ambrosiabitterweed

2. widespread European weed having yellow daisylike flowers
    sometimes an obnoxious weed and toxic to cattle if consumed in quantity

    Synonym: ragworttansy ragwortbenweedSenecio jacobaea