他们决定合伙开一家餐厅。

Tāmen juédìng héhuǒ kāi yī jiā cāntīng.

They decided to go into business together and open a restaurant.

我们一起合伙创办了这个公司。

Wǒmen yīqǐ héhuǒ chuàngbànle zhège gōngsī.

We started this company together as business partners.

他和朋友合伙投资了一个项目。

Tā hé péngyǒu héhuǒ tóuzīle yīgè xiàngmù.

He and his friends invested in a project together.