ne plus ultra
noun [ S ] uk/ˌneɪ plʌs ˈʌltrə/ us/ˌneɪ plʌs ˈʌltrə/
the ne plus ultra of something …的最好的例子
the best or most excellent example of something
The concerto has been called "the ne plus ultra of his achievements". 这首协奏曲被称为他的成就的最好体现。
In its day, the ship was the ne plus ultra of steam navigation. 在当时，这艘船是蒸汽船航行最出色的例子。