ragweed怎么读,ragweed的音标和真人发音
英音  [ˈrægwi:d]    
美音 [ˈræɡˌwid]    
音节划分:rag-weed

ragweed是什么意思,ragweed的意思是

n.豚草属

ragweed的词源和记忆技巧

ragweed 豚草
来自 ragged,破布般的,粗糙的,weed,草,杂草。比喻用法。

ragweed 的用法和双语例句“点击”或“选中”例句中的单词,就可以看到词义解释

However , people who are allergic to ragweed or daisy pollen can have a similar allergic reaction to echinacea .
然而,对豚草或菊花花粉过敏的人可能同样会对紫锥菊过敏。
Dating sediments using ragweed and nuclear fallout
利用豚草及核放射物对沉积物进行年代推定
Whether the trigger is pollen or ragweed , suffering during allergy season is no fun .
不管让你过敏的是花粉或者豚草,在过敏季节要经受的煎熬滋味可一点也不好。
For 75 percent of those 35 million , ragweed is the primary allergen , he added .
对于这35000000人的75%来说,豚草是首要过敏原,他补充道。
People with ragweed allergies are more likely to have a reaction to echinacea , and there have been cases of anaphylactic shock .
对豚草过敏的人更可能由紫锥菊引发生理反应,甚至有引起过敏性休克的案例。