1 sentence

1. 既然你没参与这个项目，就不要在那儿说三道四。

   jì​rán nǐ méi cān​yù zhè​ge xiàng​mù, jiù bù yào zài nà​r shuō​sān​dào​sì.

   Since you weren't involved in this project, don't stand there and gossip.

   Source: Dong Chinese Dictionary