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我今年68岁,牙齿健康,没有一颗松动,也没有龋齿和义齿。这一切都得益于从青年时起就注意牙齿保健,养成了每天5次刷牙的好习惯。
I am 68 years old and have healthy teeth, no looseness, no dental caries and dentures. It all benefits from dental care from youth, and has developed a good habit of brushing 5 times a day.