niebezpieczny ryzykowny 用英语:

The area is very hazardous because chemicals were spilt there.

All hazardous materials must be disposed of properly

Smoking is hazardous to your health

Firefighters work in very hazardous conditions.

It would be hazardous to invest so much.

We went on a hazardous journey across the desert.

Some of these chemicals can be hazardous to health.

It can be very hazardous to speed up in the city.

I reckon that desert islands [bezludna wyspa] are all potentially hazardous places.

This plastic garbage bag is free of hazardous chemicals.