The safety of this car is very high.

My new safety razor is very easy to use.

This area is monitored 24 hours a day by security cameras.

Please always fasten your seatbelt when you get in the car.

He chose to discard a safe tile in mahjong.

The government is considering the security of its citizens as its top priority.

This rock is radioactive, so care must be taken when handling it.

Radioactive elements are produced in nature and scientific experiments.

He started attending at the hospital.

The radiation dose in this area exceeds the safety standards.