2 sentences

1. 双方正式订立了这项贸易协定。

   shuāng​fāng zhèng​shì dìng​lì le zhè xiàng mào​yì xié​dìng.

   Both parties have officially established this trade agreement.

   Source: Dong Chinese Dictionary

2. 为了维护秩序，我们必须订立新的规章制度。

   wèi​le wéi​hù zhì​xù, wǒ​men bì​xū dìng​lì xīn de guī​zhāng zhì​dù.

   To maintain order, we must establish new rules and regulations.

   Source: Dong Chinese Dictionary