If you often wake up with a dull headache or sore jaw, you may be grinding your teeth or clenching your jaw while you sleep, a problem called bruxism.
如果你经常醒来的时候有轻微的头痛或下巴肿痛，你可能是在睡觉的时候磨牙或者紧闭牙关，被称为夜间磨牙症。
NASA said the crew had sent down video and photographs of a small star-shaped gear with two broken teeth. Experts were trying to determine whether it was related to the problem.
NASA说乘员已经下传了有关一个断了两个齿的小型星型齿轮的视频和图像。
Lion: : That is not a problem. I can do anything for her. I will pull out all of my teeth. Come back tomorrow with your daughter.
狮子：那不成问题。我能为她做任何事。我会把牙齿全都拔掉。明天和你的女儿一起来吧。
Lion: : That is not a problem. I can do anything for her. I will pull out all of my teeth. Come back tomorrow with your daughter.
狮子：那不成问题。我能为她做任何事。我会把牙齿全都拔掉。明天和你的女儿一起来吧。
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