flange|flanges

那个低俗的喜剧演员在他的表演中不断拿生殖器开玩笑。

The vulgar comedian kept making jokes about ___flange during his routine.

铁轨上的凸缘可以防止火车轮脱轨。

The ___flanges on the rails help keep the train wheels from slipping off.

这个金属部件的凸缘需要与另一个零件对齐才能紧固。

The metal part's ___flange must align with another component for secure fastening.