seat belt:安全带;汽车、飞机等座位上用于固定乘坐者、在碰撞或急刹车时减少伤害的带子。(也常说 safety belt;部分语境下 seat belt 也可泛指“系安全带”的规定或行为。)
/ˈsiːt ˌbelt/
Please fasten your seat belt before we take off.
起飞前请系好安全带。
Wearing a seat belt significantly reduces the risk of serious injury in a crash, even at low speeds.
即使在低速情况下,系安全带也能显著降低撞车时严重受伤的风险。
seat(座位)+ belt(带子)。belt 原意指“腰带/带状物”,组合后直指“座位上的带子”,后来在交通安全语境中固定为“安全带”的常用说法。