1. The car stereo came with an autochanger that can hold up to 6 CDs.
这台汽车音响配备了一个可以容纳6张CD的自动换碟器。

2. The autochanger in the DVD player makes it convenient to watch multiple movies without having to manually switch discs.
DVD播放器中的自动换碟装置使得观看多个电影非常方便，而不需要手动更换光盘。