“题外”的拼音为：tí wài...

“题外”的英语可以翻译为：outlying ...

见缝插针地提几个题外的问题。Slip in a few questions about other things.我有一次独自去参加舞会时遇上了他。但那是题外话了。I'd met him at a dance I'd gone to on my own. But that's another story.福克斯正在插入一大段题外话，讲他在该国边境游历的故事。Fox was making a long par...