慢速英语:A Little Exercise Is Better Than None

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strenuous ­– adj. requiring or showing great energy and effort

mortality ­– n. the quality or state of being a person or thing that is alive and therefore certain to die : the quality or state of being mortal

obese ­– adj. very fat : fat in a way that is unhealthy

brisk ­– adj. done with quickness and energy

specifically – adv. in a definite and exact way

moderate­ – adj. average in size or amount : neither too much nor too little

intense ­– adj. done with or showing great energy, enthusiasm, or effort

vigorous ­– adj. done with great force and energy