求翻译：美国的百老汇成为音乐剧的中心，从那时开始，音乐剧已经成为20世纪最主流的现代歌剧形式，中国近年来掀起的音乐剧热潮正是对这一事实的回应.是什么意思？

American Broadway musical to become the center since then, the musical has become the mainstream of the 20th century, most forms of modern opera, China's recent boom is set off the musical response to this fact.

The United States has become the 100 Broadway musicals, from then on, the Center has become a musical the most mainstream of 20th Century modern opera forms a wave in recent years, China's musical boom of the fact that it is the response.

US's Broadway becomes the musical the center, from started at that time, the musical already became the 20th century most mainstreams the modern opera form, the musical upsurge which China raised in recent years was precisely to this fact response.

United States Center of Broadway musicals, from then on, the musical has become the mainstream of 20th century's most modern Opera form, set off upsurge of musicals in recent years, China is a response to this fact.

Broadway of U.S.A. became the centre of the musical play, from beginning at that time, the musical play had already become modern opera form of the mainstream the most of the 20th century, the musical play upsurge raised in recent years in China is exactly a response to this fact.