3 sentences

1. 保险柜的钥匙在哪里？

   bǎo​xiǎn​guì de yào​shi zài nǎ​lǐ?

   Where are the keys to the safe?

   Source: OpenSubtitles

2. 这些贵重物品应该放在保险柜里。

   zhè​xiē guì​zhòng wù​pǐn yīng​gāi fàng zài bǎo​xiǎn​guì lǐ.

   These valuables should be kept in a safe.

   Source: Dong Chinese Dictionary

3. 他把现金和首饰都存放在办公室的保险柜里。

   tā bǎ xiàn​jīn hé shǒu​shì dōu cún​fàng zài bàn​gōng​shì de bǎo​xiǎn​guì lǐ.

   He keeps all his cash and jewelry in the office safe.

   Source: Dong Chinese Dictionary