To jazz something up means to shake things up a bit, just like music.

使活泼欢快，就是让其震撼一点，如同音乐一样。

" To jazz (something) up" means to make it more exciting, to make it more interesting.

“爵士乐（某事）起来”的意思是让它更令人兴奋，让它更有趣。