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	we can limit the we can live we can live with we can look forward to we can make a difference we can make each we can make use of we can manage we can match we can measure we can meet we can mention we can move ahead we can move forward we can move together we can naturally we can neither we can no longer we cannot we cannot accept we cannot accommodate we cannot act we cannot afford we cannot afford to neglect we cannot agree with

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 —