名词
中文翻译：Unknown
同义词：
['muscle fiber', 'muscular fiber', 'muscle tissue']
例句：
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1. The musclesin the arms are responsible for lifting objects.
手臂的肌肉负责举起物体。
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2.Muscles are essential for movement and growth.
肌肉对于运动和生长至关重要。
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3. The researcher found that certain exercises can help improve muscle strength.
研究者发现某些锻炼可以帮助增强肌肉力量。