He composed many different kinds of music, but is most famous for his military marches.

他创作了许多不同类型的音乐，但最著名的是他的军事进行曲。

Throughout his life and career,Sousa wrote over 300 pieces of music, and of those 300,136 were these military marches.

在他的一生和职业生涯中， 索萨创作了 300 多首音乐，其中 300, 136 首是这些军事进行曲。

The two most famous military marches Sousa wrote, or Sousa composed, were " Semper Fidelis" and " Stars and Stripes Forever." Sousa wrote " Semper Fidelis" in 1888.

苏萨创作或创作的两首最著名的军事进行曲是“永远忠诚”和“永远的星条旗” 。 苏萨于 1888 年创作了“永远忠诚” 。