My brother is a member of the Japan Maritime Self-Defense Force.

He spends a lot of time for peacekeeping.

It is important to understand the importance of health.

He chose a life as a home security guard, meaning he chose to be a recluse.

The sentry dog is watching over the factory all night.

The guard is standing at the entrance of the bank.

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.