飞机引擎

The plane was critically disabled when one of the engines caught fire.

有一台引,飞机严重受损。

First came the turbojet, now obsolete, then the turboprop, which is still found onboard small planes.

最开始的引是涡轮喷射式，目前已淘汰；然后是涡轮螺旋桨式引，现在仍可在小飞机上看到。