2 sentences

1. 这个房间太闷了，开窗通通气吧。

   zhè​gè fáng​jiān tài mēn le, kāi chuāng tōng tōng​qì ba.

   This room is too stuffy; open the window to let in some fresh air.

   Source: Dong Chinese Dictionary

2. 这件事情我们内部先通气，然后再对外公布。

   zhè jiàn shì​qing wǒ​men nèi​bù xiān tōng​qì, rán​hòu zài duì wài gōng​bù.

   Let's communicate internally about this matter first before making it public.

   Source: Dong Chinese Dictionary