Sydney is an important commercial（商业的），industrial（工业的）and tourist centre on the southeast coast of Australia．It is Australia's largest city with a population of more than three million．
The city has many famous sights．The harbour is one of the largest and most beautiful in the world and Sydney Harbour Bridge（悉尼港桥）—or“The Coathanger”as the people of Sydney call it—has been a GREat tourist attraction for many years．However，the most famous sight here nowadays is the Opera House（歌剧院）．Some people think that it is one of the most beautiful modern buildings in the world．
Sydney is a very modern city，but it also has many places of interest．In the areas called The Rocks and Paddington，for example，you can still see some of the first houses that were ever built here．
For entertainment（娱乐），there is a lot to do here．The city has many different kinds of restaurants，theatres，cinemas and nightclubs．There is also a zoo and a Koala Bear Park．Some of the best beaches in Australia are here，too．Surfing（冲浪）is the most popular sport in Sydney．In fact，there are so many surfers in the city that you have to register surfboards here just like you have to register motorcars！
