英语词汇pyrethrin II怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	pyrethrin II
释义	1.pyrethrin I (C₂₁H₂₈O₃)除虫菊酯I 2.pyrethrin II (C₂₂H₂₈O₅)除虫菊酯II See pyrethrin
随便看	it's a serious mistake to do sth it's a shame that … it's a shame … it's a small price to pay for sth it's a snap it's a snip at … it's a sobering thought it's as old as Adam it's a toss-up whether … it's a tough ask it's a vicious circle it's a wonder that … it says something/a lot for sb that … it says something/a lot for sth that … it's bad business it's bad manners to do sth… it's been ages since … it's better to be safe than sorry it's bitterly cold it's blatantly obvious it's boiling in here! it's brass monkeys it's brass monkey weather it's business as usual it's cold enough to freeze the balls off a brass monkey

英汉双解词典包含368430条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。