如果预算不够，我们就得减少一些不必要的开支。

Rúguǒ yùsuàn búgòu, wǒmen jiù děi jiǎnshǎo yìxiē bù bìyào de kāizhī.

If the budget is not enough, we have to cut some unnecessary expenses.

他负责制定明年的部门预算。

Tā fùzé zhìdìng míngnián de bùmén yùsuàn.

He is responsible for making next year's department budget.

为了控制成本，我们必须严格按照预算来做。

Wèile kòngzhì chéngběn, wǒmen bìxū yángé ànzhào yùsuàn lái zuò.

To control costs, we must strictly follow the budget.