release altitude

例句：

1. 1.The pilot released altitude to avoid a collision with the mountain.
   飞行员释放了高度以避免与山相撞。
2. 2. The plane was released altitude to reach its destination.
   飞机被释放高度以到达其目的地。
3. 3. The astronaut released altitude to explore the outer space.
   宇航员释放高度以探索外太空。