单词：pyrethrum
n white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
n spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum
n used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
pyrethrum的用法和样例：
例句
- This article draws up the pyrethrum ester insecticide.本品是拟除虫菊酯类杀虫剂。
词汇搭配
- pyrethrum extract除虫菊萃
- pyrethrum powder除虫菊粉
- pyrethrum flowers[化] 除虫菊花...
- Chrysanthemum coccineum[医] 红花除虫菊...
单词：pyrethrum 相关文章
You are my waking dream You're all that's real to me You are the magic in the world I see You are the prayer I sing You brought me to my knees You are the faith that made me believe Dreams on Fire Higher and Higher Passions burning bright on the pyre
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The roaring filled the world, yet dimly through the firefall Dany heard women shriek and children cry out in wonder. 火势轰隆震天，隔着崩塌的烈焰，丹妮隐约听见妇女的尖叫和孩童惊奇的呼喊。 Only death can pay for life
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As she climbed down off the pyre, she noticed Mirri Maz Duur watching her. 从火葬台上爬下来时，她注意到弥丽马兹笃尔注视着自己。 You are mad, the godswife said hoarsely. 你疯了。女祭司嘶声道。 Is it so far from mad
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The sun was going down when she called them back to carry his body to the pyre. 当她召唤他们来把卓戈的遗体搬到火葬台上时，太阳已经快要下山。 The Dothraki watched in silence as Jhogo and Aggo bore him from the tent. 乔戈和
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第35期:应聘护士 你在医院哪个科室工作？ What section do you work in the hospital? For example: A: What section do you work in the hospital?你在医院哪个科室工作？ B: I worked in Internal Medicine Division.我在内科工作。
职场英语口语急救包
One kind has in its eye a little green knob just like the head of a pin; these are called pin-eyed. The other kind has a fringe of little yellow dust-spikes instead; such flowers are called thrum-eyed. 其中一种的眼中，有一个小小的绿球，
英国学生科学读本