Exercise, on the other hand, is a structured and repetitive form of physical activity that you do on a regular basis.
锻炼，从另一个方面来讲，是一种结构化和重复的身体活动形式，前提是该活动要定期进行。
2
Exercise is a type of physical activity consisting of planned, structured, and repetitive bodily movement done to improve or maintain one or more components of physical fitness.
运动是一种有计划的、有组织的、可重复的，旨在促进或维持一种或多种体适能的体力活动。
3
Learning English is lifelong exercise, simple but repetitive.