她弯曲她的肌肉，手臂上的蛇随着肌肉而动了起来。
She flexed the muscles in her arm which made the snake slither.
正确的姿势有助于保持这些生理弯曲，而错误的姿势则相反——其将压迫或拉伸肌肉并引起疼痛。
Good posture helps maintain these natural curves, while poor posture does the opposite - which can stress or pull muscles and cause pain.
它的腿部弯曲，脚掌宽大，肌肉则因多年的苦役而变得很健壮。
His legs were bowed, his feet were wide, and his muscles were made strong by many years of hard work.
她弯曲她的肌肉，手臂上的蛇随着肌肉而动了起来。
She flexed the muscles in her arm which made the snake slither .
美丽的外皮下显现出结实而柔韧的肌肉，锋利弯曲的刚毛排列在脊骨上。
Its wiry, supple muscles were visible beneath its fine coat, and sharp curving quills lined its spine.
美丽的外皮下显现出结实而柔韧的肌肉，锋利弯曲的刚毛排列在脊骨上。
Its wiry, supple muscles were visible beneath its fine coat, and sharp curving quills lined its spine.
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