1 sentence

1. 他的行踪非常诡秘，没人知道他在哪里。

   tā de xíng​zōng fēi​cháng guǐ​mì, méi rén zhī​dào tā zài nǎ​lǐ.

   His whereabouts are very mysterious; no one knows where he is.

   Source: Dong Chinese Dictionary