4 sentences

1. 我知道地雷在哪儿。

   wǒ zhī​dào dì​léi zài nǎ​r.

   I know where the mines are.

   Source: OpenSubtitles

2. 地雷是哪里来的？

   dì​léi shì nǎ​lǐ lái de?

   Where did the mines come from?

   Source: OpenSubtitles

3. 士兵在草丛里埋下了地雷。

   shì​bīng zài cǎo​cóng lǐ mái​xià le dì​léi.

   The soldiers buried landmines in the grass.

   Source: Dong Chinese Dictionary

4. 那个话题是他的地雷，最好不要提。

   nà​gè huà​tí shì tā de dì​léi, zuì hǎo bù yào tí.

   That topic is a minefield for him; it's best not to mention it.

   Source: Dong Chinese Dictionary