pièce de résistance       
noun [ usually S ] (also piece de resistance  pieces de resistance uk/piˌes də reɪ.zɪˈstɑ̃ːs/ us/piˌes də reɪ.zɪˈstɑ̃ːs/) uk/piˌes də reɪ.zɪˈstɑ̃ːs/ us/piˌes də reɪ.zɪˈstɑ̃ːs/ plural pièces de résistance uk/piˌes də reɪ.zɪˈstɑ̃ːs/ us/piˌes də reɪ.zɪˈstɑ̃ːs/
 最佳项目;最重要的事件
the best and most important or exciting thing, often the last in a series of things
  The pièce de résistance of his stage act was a brilliant Barbra Streisand impression. 他最拿手的表演节目是对芭芭拉·史翠珊的出色模仿。 
 The piece de resistance was undoubtedly the creme brulee with strawberry compote.
 - More examples
 - The pièce de résistance was the sirloin steak with grated horseradish and parsley butter.
 - The piece de resistance was a dish made in heaven - the mignon of veal.
 - The apartment's piece de resistance is its terrace.