阅读短文，回答下列问题。
New York is a very large city with more
than eight million people. How do so many people move on their way to work or
school? In New York you can travel by subway, bus, taxi and private car.
The subway runs on the railroad lines under
the city. Travelling by subway is the fastest way to get around the city. The
second way to travel around the city is by public bus. It is a slower way to
travel. This is because the traffic is very heavy.
You can also travel around the city by taxi.
This is very expensive, but the taxi will take you to every place you want to
go. If the traffic is heavy, the taxi will be slow too.
During the mornings and afternoons, there
is the "rush hour". This is the time when the traffic is very heavy
with people going to and from work. The last way to get around New York is
using your private car. It is inconvenient（不方便的）because
you will perhaps be driving during the "rush hour". The best time to
travel around the city is from 9 am to 4 pm, because it isn't the "rush hour".
