3 sentences

1. 我们的法律法规应当与国际惯例接轨。

   wǒ​men de fǎ​lǜ fǎ​guī yīng​dāng yǔ guó​jì guàn​lì jiē​guǐ.

   Our laws and regulations should align with international practices.

   Source: Dong Chinese Dictionary

2. 按照惯例，新任校长会在开学典礼上致辞。

   àn​zhào guàn​lì, xīn​rèn xiào​zhǎng huì zài kāi​xué diǎn​lǐ shàng zhì​cí.

   As a matter of routine, the new principal will give a speech at the opening ceremony.

   Source: Dong Chinese Dictionary

3. 按照惯例，这笔交易的中间人可以拿到一定比例的回扣。

   àn​zhào guàn​lì, zhè bǐ jiāo​yì de zhōng​jiān​rén kě​yǐ ná​dào yī​dìng bǐ​lì de huí​kòu.

   By convention, the middleman in this transaction gets a percentage as a kickback.

   Source: Dong Chinese Dictionary