名词
中文翻译：伸展肌肉
同义词：
['stretch muscle', 'extend muscle例句：1. The athlete stretched his muscles during the warm-up.（运动员在热身时伸展了他的肌肉。）']
例句：
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1. The athlete stretched his muscles during the warm-up.
运动员在热身时伸展了他的肌肉。
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2. She stretched her arms out to embraceher friend.
她伸展双臂拥抱朋友。
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3. Themarathon runner stretched his legs before startingthe race.
马拉松跑者在比赛开始前伸展他的腿。