英语词汇a roi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	a roi
释义	roi noun— 投资回报率 n Examples: return on investment (ROI)— 投资回报率
随便看	by this person by this practice by this principle by this procedure by this program by this proposal by this provision by this reference by this review by this route by this Schedule by this schedule by this scheme by this sentence by this standard by this step by this strategy by this structure by this study by this summer by this system by this technique by this test by this time by this time next year

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。

roi noun—