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我写的自行车。希望你采纳
At the age of seven I would sit bike. The bicycle is the most simple, the most popular traffic tools, children, youth, the elderly can sit. It is simple, but not simple, according to my experience in riding, some do not understand the question to ask Dad, I think the bicycle body embodies the scientific principle: its movement, contains the third grade math we learned the rotation and translation; the brake is a simple lever, with a small power to put the car braking; its wheels, with dozens of steel wire tension axis, very light and strong, able to withstand heavy dozens of times than its own weight.......
The bicycle is the most environmentally friendly, the most security, the most convenient means of transport, no gas, no electricity, no exhaust, parking occupying little space, no safety accident occurs very rarely. Whether sunny, rainy, foggy, snowy can sit; whether senior highway, crowded street, lane, the rugged mountain road, manor ridge can travel. Bicycle is a traffic tool and fitness equipment, often mounts, can take exercise, enhance physical fitness, adjustable weight function.
More and more motor vehicles, the climate getting warmer, destruction of the atmospheric environment of vehicle is the arch-criminal, while the bicycle tree for environmental hero is fully deserve! One of the richest countries in Europe in Holland, more than three people will be a bike as a means of transport, to keep the kingdom of bicycles. In order to environmental protection, to health, for the sake of safety, let us to the Dutch study, much less by bike, motor vehicle. The bike won't outdated, bicycle long live!
At the age of seven I would sit bike. The bicycle is the most simple, the most popular traffic tools, children, youth, the elderly can sit. It is simple, but not simple, according to my experience in riding, some do not understand the question to ask Dad, I think the bicycle body embodies the scientific principle: its movement, contains the third grade math we learned the rotation and translation; the brake is a simple lever, with a small power to put the car braking; its wheels, with dozens of steel wire tension axis, very light and strong, able to withstand heavy dozens of times than its own weight.......
The bicycle is the most environmentally friendly, the most security, the most convenient means of transport, no gas, no electricity, no exhaust, parking occupying little space, no safety accident occurs very rarely. Whether sunny, rainy, foggy, snowy can sit; whether senior highway, crowded street, lane, the rugged mountain road, manor ridge can travel. Bicycle is a traffic tool and fitness equipment, often mounts, can take exercise, enhance physical fitness, adjustable weight function.
More and more motor vehicles, the climate getting warmer, destruction of the atmospheric environment of vehicle is the arch-criminal, while the bicycle tree for environmental hero is fully deserve! One of the richest countries in Europe in Holland, more than three people will be a bike as a means of transport, to keep the kingdom of bicycles. In order to environmental protection, to health, for the sake of safety, let us to the Dutch study, much less by bike, motor vehicle. The bike won't outdated, bicycle long live!
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