This area is off-limits due to radioactive contamination.

After the nuclear accident in Fukushima, decontamination work is being carried out.

They are working hard to decontaminate the radioactive contaminated area.

They are my best friends.

This area is affected by radioactivity.

He is endeavoring every day to pass the exam.

He is making an effort every day to pass the exam.

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

She dyed her hair blue.

The pollution in this area has become a serious problem.