They can watch them on YouTube, or for those lacking an internet connection, the school provides a compact disc (CD) or a data storage device with the recordings.
他们可以在YouTube上观看，对于那些无法上网的学生，学校会提供一张存储着这些课程的CD光盘或数据存储设备。
Data storage device
原声例句
VOA Special 2020年9月合集
中文百科
保存设备
保存设备是用于储存信息的设备或设备。通常是将信息数字化后再以利用电、磁或光学等方式的媒体加以保存。
常见的保存设备有：
具体驱动设备的例子如：
英语百科
Data storage device 储存装置
A data storage device is a device for recording (storing) information (data). Recording can be done using virtually any form of energy, spanning from manual muscle power in handwriting, to acoustic vibrations in phonographic recording, to electromagnetic energy modulating magnetic tape and optical discs.
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