Look at my pectoralis major, much worse than you!
看看我的胸大肌，不比你差多少！
Main chest muscle pectoralis major, minor muscle and intercostal muscles.
深层的肌肉较多，主要有骶棘肌。
P. pectoralis was discovered to possess complex, multiple and effective defensive behavior.
结果表明：胸窗萤具有复杂的多重防卫行为策略。
P. pectoralis was discovered to possess complex, multiple and effective defensive behavior.
结果表明：胸窗萤具有复杂的多重防卫行为策略。
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