-> 3. The City of Song p.13
Listening to music is the favorite pastime of many people all over the world. This is especially true for
people living in Vienna, the city of song. Being the home of Mozart, this city is the birthplace of classical
music and the waltz.
Music fills the air in Vienna. Going to public concerts is often free of charge. And don't forget, Vienna is
also home to the world famous Vienna Boys' Choir. No wonder people say Austria is always alive with the sound
potbelly 大肚皮 He is a potbelly.
the world over adv. = around the world = throughout the world = all over the world
classical 古典的 classic 经典的
be free (of charge) 免费 This sample is free of charge.
be enslaved by 被...奴役
be home to / be homed of 发源地，老家
no wonder + clause adv.难怪 No wonder Bruce is in such a good shape, he excercises every day.
4. He Who Hesitates Is Lost p.21
2. How to Improve Your English p.9.