| 单词 | optical disc | 
| 释义 | optical discnoun variants  or optical disk     plural optical discs or optical disks     : a disk with a plastic coating on which information (such as music, visual images, or computer data) is recorded digitally (as in the form of tiny pits) and which is read by using a laser  The PS5 is available in two versions. … At this point, people are happy to get their hands on either one, but if you don't have a library of optical discs—for Blu-ray movies, used games or old PS4 games—CNET recommends that you go with the $400 version. | 
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