unopened parachute

例句：

1. 1.The pilot was forced to land the plane in an unopened parachute.
   飞行员被迫在未打开的降落伞上迫降飞机。
2. 2.The paramedics used an unopened parachute to save the injured man's life.
   急救人员使用一个未打开的降落伞来拯救受伤男子的生命。
3. 3.The pilot had to make an emergency landing in an unopened parachute.
   飞行员不得不在一个未打开的降落伞上紧急着陆。