(44~46)Biking is becoming more and more popular now. During the week, more people ride bikes to work instead of going by car or motorcycle. On the weekend, it is common to see people go biking for fun with their family or friends. People ride bikes for lots of different reasons. Some think it would save more money than driving； others think it would be good for their health； still others think they could help save the Earth by cutting down on the use of energy. No matter what the reasons are, humans should stop doing damage to the planet as soon as possible. Replacing cars or motorcycles with bicycles is a good start. What’s more, if you live close to where you work, going there on foot will surely be your best choice. Everybody should take action to make our Mother Earth healthier.
no matter…不管、不論… replace取代