2 sentences for 窗口 (chuāng​kǒu — service window)

1. 售票窗口在哪里？

   shòu piào chuāng​kǒu zài nǎ​li?

   Where is the ticket window?

   Source: Tatoeba

2. 售票窗口的队伍一直排到街角。

   shòu piào chuāng​kǒu de duì​wu yī​zhí pái dào jiē​jiǎo.

   The queue at the ticket window extended all the way to the street corner.

   Source: UM-Corpus: Spoken