德语
〈中〉 pl.Brustbeine ①胸骨,②(鸟类)叉骨,如愿骨:大多数鸟胸骨前部的叉形骨,因锁骨合并形成的
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〈中〉 pl.Brustbeine ①胸骨,②(鸟类)叉骨,如愿骨:大多数鸟胸骨前部的叉形骨,因锁骨合并形成的