他负责监督整个大工程的进展。

He is responsible for overseeing the progress of the entire large project.

这个建筑项目是一个大工程，需要很多年的时间。

This construction project is a large project that will take many years.

完成这个大工程需要大量的资金和资源。

Completing this large project requires a lot of funds and resources.

这个大工程的成功将带来巨大的经济效益。

The success of this large project will bring significant economic benefits.

他们正在计划一个新的大工程，涉及多个部门。

They are planning a new large project that involves multiple departments.

租一台挖掘机可能很贵，但对大工程是必要的。

Renting a backhoe can be expensive, but it's necessary for big jobs.

犯罪现场调查可是个大工程。

Crime scene investigation is a massive undertaking.

龙处长现在负责一个上亿元的大工程。

Long Director is now responsible for one billion on the project.

创立一种崭新的商业运行方法可谓是一个大工程.

Creating a new business process is a major project.

上图：我们第一次的内部大工程就是这个主卫生间。

Image above: Our first big gut project was the master bath.