科研之友
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摘要
<正>I travel a lot.Each month,I pack up my suitcase to hit the road,whether it could be by plane,train,or automobile Whether it could be for work,for family,or for a vacation,always find myself with the same problem—how to stay healthy and fit while traveling?我常常旅行。每个月我都会收拾行囊踏上旅途,不管是乘飞机、火车或者汽车。不论是去出差、探亲还是度假,我总是面临同样一个难题——如何在旅途中保持健康呢?
