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“牙痛不是病,痛起来真要命”,这句话想必不少同学都听说过了。牙痛时,许多人才后悔平时没有好好保护牙齿,没有养
“Toothache is not a disease, it tasted really terrible,” I think a lot of classmates must have heard of this sentence. Toothache, many people regret not usually protect the teeth, no support