Then the pilot pushed down the throttle and the plane nosedived.

接着，飞行员调低节流阀，使飞机急降。

If you start going in a very, very high velocity toward the ocean, you can't pull the aircraft out of the dive.

如果飞机开始以极高速向海前进，那飞机员无法将飞机从急降。

I know the Plummet Boys criticized me.

我知道“急降男孩”批评了我，因为我没看。

Now there came a little " flutey" bit – very pretty! – a litter chain of bright drops.

这时传来“长笛般”柔和清亮的一小段音乐——十分悦耳——一长串活泼的急降。