7 sentences

1. 一个不明物体正在靠近！

   yī​ge bù​míng wù​tǐ zhèng​zài kào​jìn!

   An unidentified object is approaching!

   Source: OpenSubtitles

2. 任何原因不明的出血都应该检查。

   rèn​hé yuán​yīn bù​míng de chū xuè dōu yīng​gāi jiǎn​chá.

   Any unexplained bleeding should be investigated.

   Source: CCMatrix

3. 他们被迫跳舞大约一个月，原因不明。

   tā​men bèi​pò tiào wǔ dà​yuē yī​ge yuè, yuán​yīn bù​míng.

   They were compelled to dance for about a month for no clear reason.

   Source: CCMatrix

4. 目前她的下落不明。

   mù​qián tā de xià​luò​bù​míng.

   Her current whereabouts are unknown.

   Source: United Nations

5. 他们仍下落不明。

   tā​men réng xià​luò​bù​míng.

   They're still missing.

   Source: OpenSubtitles

6. 他仍下落不明。

   tā réng xià​luò​bù​míng.

   He's still missing.

   Source: OpenSubtitles

7. 我从没看过不明飞行物体。

   wǒ cóng​méi kàn guo bù​míng​fēi​xíng​wù​tǐ.

   I have never seen a UFO.

   Source: OpenSubtitles