英语词汇concentration of dangerous substances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	concentration of dangerous substances
释义	concentration n — 集中 n • 浓度 n • 含量 n • 浓度 n concentration — 浓缩 • 凝缩 substances pl — 物质 n of — 的 substance — 内容 • 实体 • 物体
随便看	I ´m not convinced by the i ´m not convinced by the i´m not coping i´m not done yet i´m not even close I´m not even close i´m not even close I´m not even close I´m not fond of I´m not fond of i´m not, for one i´m not, for one i´m not, for one i´m not, for one I´m not, for one I´m not giving in I´m not giving in i´m not going I´m not going i´m not going i´m not in a position to I´m not in a position to i´m not in a position to i´m not in time i´m not in time

英汉双解词典包含2273206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。

concentration n —