英语词汇rock bottom是什么意思，rock bottom的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。

单词	rock bottom
释义	UKUS
随便看	relational composite relational concept relational condition relational data language relational data model relational database relational database capability relational database environment relational database language relational database machine relational database operation relational database query relational database schema relational database system relational database theory relational document relational expression relational file relational graph relational hierarchy relational instruction relational interface optimization relational language relational matrix relational memory