CD-ROM /ˌsiːˈdiːˈrɒm/ CET4

• 1. 

  N-COUNT A CD-ROM is a CD on which a very large amount of information can be stored and then read using a computer. CD-ROM is an abbreviation for "compact disc read-only memory." 只读光盘 [计算机]

  例：

  A single CD-ROM can hold more than 500 megabytes of data.

  单单一张只读光盘就能存储500多兆的资料。