名词
中文翻译：自愿锻炼
同义词：
['self-discipline', 'personalexercise']
例句：
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1.He decided to take up voluntaryexercise to improve his health.
他决定开始自愿锻炼来改善他的健康。
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2.The gym provides a variety of voluntaryexercise classes for all ages and fitness levels.
这家健身房为所有年龄和健身水平的人提供各种自愿锻炼课程。
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3.Many people choose voluntaryexercise as a way to relieve stress and maintain a healthy lifestyle.
许多人选择自愿锻炼作为一种缓解压力并保持健康生活方式的方式。