air belt

例句：

1. 1. The pilotwas wearing a safety belt when the planecrashed.
   飞机坠毁时，飞行员系着安全带。
2. 2. She wore a beltaround her waist to hold up her dress.
   她系了一条腰带，以支撑她的裙子。
3. 3. The driver fastened his belt beforestarting the engine.
   司机在发动引擎前系好了安全带。