他主张现代设计在竞赛中的优越性。

He argued for the ___superiority of modern design in the competition.

该国领导人经常谈论其政治制度的优越性。

The country's leaders often speak of the ___superiority of their political system.

最新型号在性能和效率上都拥有明显的优越性。

The latest model boasts a clear ___superiority in both performance and efficiency.