drop sonde

例句：

1. 1. He jumped out of the plane and landed on the ground with a parachute.
   他从飞机上跳下来，带着降落伞落在了地上。
2. 2.The pilot used his parachute to safely land the plane after a sudden emergency.
   飞行员使用降落伞在紧急情况后安全着陆了飞机。
3. 3. The soldiers were dropped off at the border by their commanding officer.
   士兵们被他们的指挥官从边境处放下。