显然，相比年轻人，老年人会更经常生病，而且更为严重，他们中86%患有不同程度的慢性疾病。
IT IS OBVIOUS THAT THE OLD GET SICK MORE FREQUENTLY AND MORE SEVERELY THAN THE YOUNG, AND 86 PERCENT HAVE CHRONIC HEALTH PROBLEMS OF VARYING DEGREE. 
显然，相比年轻人，老年人会更经常生病，而且更为严重，他们中86%患有不同程度的慢性疾病。
IT IS OBVIOUS THAT THE OLD GET SICK MORE FREQUENTLY AND MORE SEVERELY THAN THE YOUNG, AND 86 PERCENT HAVE CHRONIC HEALTH PROBLEMS OF VARYING DEGREE. 
