动词短语
中文翻译：换脚
同义词：
['switch feet', 'change legs']
例句：
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1.The dancer switched his feet to perform a different routine.
舞者换了脚来表演不同的舞蹈。
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2. After the game, the players switched their feet to prepare for the next match.
比赛结束后，球员们换了脚准备下一场比赛。
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3. The old man switched his feet to walk faster and reach the hospital on time.
老人换了脚走路更快，按时到达医院。