2 sentences

1. 他们几个朋友合伙开了一家餐厅。

   tā​men jǐ gè péng​you hé​huǒ kāi le yī jiā cān​tīng.

   A few friends partnered up to open a restaurant.

   Source: Dong Chinese Dictionary

2. 他们两个狼狈为奸，合伙诈骗老人的钱财。

   tā​men liǎng gè láng​bèi​wéi​jiān, hé​huǒ zhà​piàn lǎo​rén de qián​cái.

   The two of them acted in collusion to defraud elderly people of their money.

   Source: Dong Chinese Dictionary