Shared bicycles have become a popular mode of transportation in many cities around the world. These bicycles are convenient, environmentally friendly, and affordable for most people. They are a great way to travel around the city, reducing traffic congestion and air pollution, while also providing an economical and healthy way to get around. Shared bicycles are a great addition to our transportation options, and I believe more people should use them to help improve our cities.

譯文：

共享單車已成為世界各地很多城市的一種時尚交通方法。這類自行車便捷、環保，對大部分人來講負擔得起。它們是環城旅游的好辦法，可以降低交通擁堵和空氣污染，同時提供一種經濟健康的方法。共享單車是大家交通選擇的要緊補充，我相信更多人應該用它們來幫助改變大家的城市。