英语词汇4d whitening system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	4d whitening system
释义	whitening n — 白化 n whiten v — 美白 v whiten — 漂白 system n — 制 n • 体 n • 制度 n • 体制 n • 制式 n • 装置 n • 条贯 n
随便看	you think otherwise you think that you think they would youth in need youth in science youth Institute youth internship youth issues youth justice youth justice system youth labour force youth labour market youth leader youth leadership youth leadership programme youth League youth learning youth leisure youth lifestyle youth literacy youth literature youth market youth marketing youth matters youth meeting:

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。

whitening n —