3 sentences

1. 档案室在楼上。

   dàng'àn​shì zài lóu​shàng.

   The file room is upstairs.

   Source: OpenSubtitles

2. 他们在档案室！

   tā​men zài dàng'àn​shì!

   They're in the archives!

   Source: OpenSubtitles

3. 我在天主教档案室有个朋友。

   wǒ zài Tiān​zhǔ​jiào dàng'àn​shì yǒu gè péng​you.

   I have a friend in the Catholic archives.

   Source: OpenSubtitles