英语词汇bum roll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

英汉双解词典包含3185865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。

单词	bum roll
释义	bum roll 简明释义臀围撑垫
随便看	improvement project improvement rate improvement ratio improvement, reduction improvement report improvement research improvements improvements improvements and extensions improvement scheme improvements in progress improvements on leased improvements on leased property improvements other than buildings improvements to plant and equipment improvement suggestions improvement system time improvement techniques improvement thinning Improvement-thinning improvement threshold improvement time improvement trade improvement trade for export improvement trade for import