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Shanghai changes a lot in transportation(交通).
In the past, there were few cars. Now there are many kinds of cars. There were not any bridges above the Huangpu River. Now there are some bridges on it. There were no tunnels(隧道)under it.
There were no undergrounds. Now there are many undergrounds. There were no light rails(轻轨)and maglevs(磁悬浮). Now there are some lights and maglevs.
The changes make our lives more convenient(方便). I like the changes.
