Your jawbone is the hardest bone in your body. 你的下頜骨是身體里最堅硬的骨頭。
Her schedule includes a speech therapist because the nerves on the right side of her face, as well as her jaw bone and lips, were damaged. 她的日程安排中包括拜訪一名語言治療專家，因為除了下頜骨和嘴唇之外，她面部右側的神經也受到了損壞。
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