英语词组pyrethrin II是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	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	by modern standards by mutual agreement by mutual consent by my estimation by my troth by myself by name by name by nature by nature by night by night by nightfall by no manner of means by no manner of means by no means by no stretch of the imagination by oneself by osmosis by ourselves by parol by phone by post by proxy by radio

英语词组固定搭配大全包含52743条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。