Definition (安全)
to secure the belt that holds you in place in a vehicle or aircraft
系好安全带
Before starting the engine, make sure all passengers are belted up.
在启动引擎之前,请确保所有乘客都系好安全带。
The plane is about to take off; please belt up everyone.
飞机即将起飞,请大家系好安全带。
It's essential to remember to belt up while driving; it’s an important safety measure.
开车时记得系好安全带,这是一项重要的安全措施。