seat belt
US /ˈsiːt belt/
UK /ˈsiːt belt/

1.
安全带
a strap or harness designed to secure a person in a seat, especially in a vehicle or aircraft, to prevent injury in the event of a collision or sudden stop
:
•
Always fasten your seat belt before driving.
开车前务必系好安全带。
•
The flight attendant reminded everyone to keep their seat belts fastened during turbulence.
空乘人员提醒大家在颠簸时系好安全带。