This area is affected by multiple contamination.

I take classes every day.

He accepted my proposal and started the project.

In my area, a summer festival is held every year.

His opinion had a big influence on my decision.

That news greatly influenced his opinion.

This complex is a combination of a shopping mall and an office building.

A new idea was born when these two elements were combined.

The pollution in this area has become a serious problem.

Don't take his joke seriously.