为什么纽约又被叫做大苹果?

Why is New York Also Called the Big Apple

The New York City Visitors' Bureau says jazz musicians and entertainers first called New York the Big Apple 50 years ago.At that time, jazz musicians earned money by performing in many cities and towns across the United States. But performers liked to play in New York City best of all. New fork was the place with the best-paid jobs, the most money to earn and a greater number of people to appreciate jazz music.