CD-ROM is an optical technology that is used to make compactdisks for CD stereo systems; it has now been adapted to store data for computers.
CD - ROM原是一种用于制作CD立体声系统的小型圆盘的光学技术，现在它已经被用来为计算机储藏数据。
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Reporters were given little teddy bears with candy and compactdisks with wedding portraits taken at a scenic resort in eastern China last week.
记者们收到了一个泰迪小熊，一盒糖果和一盘碟，里面有上周新郎新娘在华东某风景区拍下的结婚照。
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As a storage method it is extremely compact -- because each cell is minuscule, the group says that one gram of bacteria could store the same amount of information as 450 2,000-gigabyte hard disks.