It helped save the lives of some pilots during training.

VOA: special.2010.05.30

and some people get knighted because they save lives as well.

一些人被授予骑士，就是因为他们拯救了生命。

想获得骑士爵位 - SpeakingMax英语口语达人

and some people get knighted because they save lives as well.

一些人被授予骑士，就是因为他们拯救了生命。

想获得骑士爵位 - SpeakingMax英语口语达人