to begin with,首先,怎么怎么样.几乎意味着还有下文同样并列关系的内容.后面的逗号不能去,因为很明显要单独列出来做一个相当于状语的成分,相当于firstly,individual.to begin with 英[tu: biˈɡin wið] 美[tu ˈbeɡɪn wɪð] [释义] 首先，起初; [例句]To download library packages for you, Composer needs to know where to find these packages to begin with.要下载库包，Composer首先需要知道在哪里可以找到这些软件包。
