这个动画片使用了很多名人的画外音来增加趣味性。

This cartoon features many celebrity ___voice-overs to make it more entertaining.

他为纪录片做了很多配音工作。

He does a lot of ___voice-overs for documentaries.

这部纪录片的旁白非常生动，帮助观众更好地理解内容。

The ___voice-overs in this documentary are very vivid, helping viewers better understand the content.