Seat belts were invented by George Cayley in the 1800's.
George Cayley invented seatbelts :)
It is for your safety. More people without a seatbelt die in car accidents than with seatbelt. So I require to use the seatbelt. See here for more information about seatbelt usage: How_much_does_it_cost_to_replace_a_window
Buckle your seatbelt!
why it is ok to not wear a seatbelt
because it's a belt for a seat.
you are wearing the seatbelt.
The seatbelt
The word seatbelt has two syllables. The syllables in the word are seat-belt.
By putting your seatbelt on! Not wearing a seatbelt is one of the dumbest things you can do. Seat belts save lives.
No, you should remain seated with your seatbelt fastened when the seatbelt sign is on, even if you need to use the bathroom.
By buckling your seatbelt.
a seatbelt = une ceinture de sécurité