英语词汇i had to concentrate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	i had to concentrate
释义	concentrate — 集中 • 注 • 精矿 • 精选 • 贯注 • 孜孜不倦 • 浓集 • 运神 • 钟 • 着眼 • 凝缩 concentrate v — 专注 v • 浓缩 v have v — 有 v • 所有 v • 具有 v • 自有 v • 设有 v • 具备 v • 抱有 v • 占有 v concentrate n — 浓缩物 n
随便看	is available upon request is available upon request is available which is available with is available www is availlable is avaliable is a valid indicator is a valid one is a valuable asset is a valuable opportunity is a valuable resource is a valuable tool is a valuable way is a variable is a variant of is a variant of is a variety is a vast i save i saved i saved a lot of money i saved space i saved the date i saved you

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。

concentrate —