最后我们把这三种方法结合起来，将一个冗长、绕嘴的句子，改写成一个简短、易懂的句子。
①University malls must be accessible and free from congestion in order that students, facultyandemployees may have unobstructed passage through those areas of the campus.(校内道路必须是便于通行的，不拥堵的，以便让学生、教师和职员能够无阻碍地通过，到达校园的各处。)
②University malls must be free enough from congestion to allow people to walk through easily.(校内道路不应当拥堵，以便人们顺利通行。)
