修筑新的道路可增加交通流量，反过来也是同样的道理：减少道路的数量和规模就意味着减少交通流量。
Building new roads increases traffic and the converse is equally true: reducing the number and size of roads means less traffic.
在成人身上，也是同样的道理。
鼓励老太太随时随地过马路也是同样的道理。
The same goes for encouraging old ladies to cross the road wherever and whenever they care to.
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