光盘能够存储比磁盘多得多的数据。
Optical disk holds much more, data than many magnetic disks.
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光盘的数据存储量比硬盘和软盘大得多。
CD has a much more data volume than that of hard disk and floppy disk.
一张只读存储光盘能容纳500兆以上的数据。
A single CD - ROM can hold more than 500 megabytes of data.
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