1790, a French name, he loves it with his mind. One day, he was walking on a street in Paris, because it rained that day and accumulated a lot of rain, which made it difficult to walk on the road. Suddenly, a carriage rolled in from behind. The street was narrow and the carriage was wide. Hyvl was hiding, but fortunately he was not knocked down by the car, or he would have been splashed with mud and rain. When others saw it, they felt sorry for him, but they were also angry and scolded. They wanted to stop the cart and make reasonable negotiations. Schiff, but murmured, "Don't cry, don't shout, let them go." The carriage went away again, and he stood on the side of the road, thinking: The road is so narrow and there are so many pedestrians, why can't the structure of the carriage be changed? The carriage should be cut in half along the front and back, and four wheels should be changed into two wheels ... he thought, so that the family would start designing. After repeated experiments, the first walking Trojan horse was built in 179 1. The earliest bicycles were made of wood, and their structure was simple. There was neither a driving device nor a steering device. Cyclists stepped on the hard ground with their feet to change direction, and they could only move the car when it was running. Nevertheless, when Shivsky went for a ride in the park by bike, all the people present were quite surprised and amazed.

answer

use

Can be used as an environmentally friendly means of transportation instead of walking and traveling; More and more people use bicycles and bicycles as fitness equipment for cycling and exercise travel; Bicycle itself is a competitive sport, such as road cycling, mountain cycling, cycling and stunt cycling.

1790, the name of France, with the thoughts he loves so much. One day, he was walking in the street of Paris. Because of the rain, there was a lot of rain, and the road was very difficult. Suddenly, a carriage came from behind. The streets are narrow and the carriages are wide. Shiv, who was hit by a car, was splashed with mud and rain. Others saw it, pitied him, scolded him angrily, and wanted to stop the carriage and show it reasonably. Schiff whispered, "Don't cry, don't shout, let them go." The carriage left and he stood by the side of the road. This road is too narrow and there are so many pedestrians, he thought. Why can't structural changes be transmitted? The carriage will be cut in half, with four wheels, two wheels before and after ... he thinks the family will start designing. After repeated experiments, at 179 1, the first car took the Trojan horse. The earliest bicycles were made of wood, with simple structure, no drive and no steering device. It's difficult to walk by bike, so we have to change direction and treat cars as cars. Even so, when Schiff rode to the park, everyone present was quite amazing and impressed.

answer

use

It can be used as an environmentally friendly means of transportation instead of walking and traveling. More and more people use bicycles, bicycles and fitness equipment for cycling. Bicycle itself is a kind of sports competition, road cycling and mountain cycling competition, cycling and stunt cycling competition.

Satisfied and looking forward to being adopted