In this example, a student will use the train (each depicted by separate classes) in order to go to school.
这个例子中，学生将乘坐火车(每部分都由单独的类描述)上学。
I go to school by bus and by train, but my father goes to the office by car.
我乘公共汽车和火车上学，但我爸爸开车上班。
I go to school by bus and by train, but my father goes to the office by car.
我乘公共汽车和火车上学，但我爸爸开车上班。
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