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大多数人每天都要过马路,红灯停,绿灯行,几乎成了反射动作,而食物的种类也可以分成红、黄、绿三类:
Most people cross the road every day, stop at a red light, walk in a green light, and become almost a reflex action. The types of food can also be divided into red, yellow and green: