a good exercise.go to school by bike which is not only economical but also healthy.can interacally alleviate the traffic jam . adults drive around the city,making the traffic ponder and ponder. If they were told to ride bicycles and developed this habit.much easier biking as a way of commuting.
老师,那个,Making traffic ponder and ponder是吗?还有那个是interacally 是吗
彭百万雅思口语 回复 @唯一纯白色的茉莉花: bumper to bumper