Our city is 100 years old. It was a small fishing town about 100 years ago. There weren't many people. We had streets but there weren't any highways. There weren't any factories either, but there was a big harbour (港口) and lots of boats. Now, the city has lots of highways and a lot of people. There are lots of factories, too. The harbour is small, but you can see lots of boats there. There are also cars, buses, taxis and underground trains. The city is very different now from 100 years ago.