safety-belt

例句：

1. 1. He wore a safety-belt to protect himself from the fall.
   他佩戴了安全带以防从高处跌落。
2. 2. The driver was wearing a safety-belt when the accident happened.
   事故发生时，驾驶员系着安全带。
3. 3. The child was in the back seat, and his mother buckled him into a safety-belt.
   孩子坐在后座，他的妈妈把他系在了安全带上。