what the technology is
when it was invented
what it is used for
explain how you feel about it
是什么+简短介绍一下
when it comes to the technology i like to use, the first come into my mind is bike sharing system, a service in which bicycles are made available for shared use to individuals who do not own them.

As for when it was invented, i guess it was firstly invented in 1960 in Europe and it gains high popularity in china these five years.

I used it for the first time in my high school. At that time ,my home is 2 kilometers away from the school.
If i took a bus to school, i might meet the pile-ups.Therefore ,i strongly believed that the bike sharing system can give me a hand.
Time tries truth, it has tremendous advantages.

原因1+详细说明(一两句话)
The point i would like to begin with is that it helps me get rid of the traffic Jam. Unlike taking a bus, i am not afraid of being late due to the heavy traffic.

The point i want to add is that it plays a crucial role in many people's lives. Main:To some extent, the bike sharing system solve "the last mile" problem. And it connects users with a cheap and effective way after the rapid development of mobile applications.

last but not least, city dwellers get used to a sedentary lifestyle and we do need an appropriate method to do outdoor activities.
Riding a sharing bike enable us to lose weight and keep fit unconsciously.

OK, that is all what i have to say ,thank you.