英语语法分析

That night, I watched him rappel into the area near a molten volcano on the island of Hawaii.

那天晚上，我看着他顺着绳索下到夏威夷岛上一个熔化的火山附近地区。

They learned to rappel down a cliff.

他们学会了绕绳从绝壁上滑下。

Once at the rappel station, connect directly to one of the anchors.

一旦到达下降站，直接将自己连接到锚点上。