by doing exercises
通过做练习
以上为机器翻译结果，长、整句建议使用 人工翻译 。
By doing exercises, we can always stay healthy.
借着做运动，我们能够始终保持健康。
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He toughened his muscles by doing exercises.
他通过锻炼使肌肉健壮。
He remains full of energy by doing exercises.
他通过锻炼来保持充沛的精力。
"Overall a person can get the same results that these machines or gadgets could produce, just by doing some exercises using maybe some weights, a ball and a mat, " Hirsh said.
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