飞机起飞后不久就坠毁了，因为飞机无法上升到足够的高度飞越群山。
The crash happened shortly after take-off when the plane was unable to gain enough height to clear the mountains.
再者，它还应该取决于这片云上升到大气层中的高度。
Moreover, it should depend upon how high the cloud rose into the atmosphere.
无线电探空仪可以自由地上升到尽可能高的高度。
A radiosonde is free to rise to as great an elevation as possible.
应用推荐