A high proportion of five-year-olds have teeth in poor condition.
五岁儿童牙齿不健康的比例高。
《牛津词典》
2
But the high sucrose content of orange juice attacks the enamel on your teeth and can increase the risk of Type 2 diabetes.
不过桔子汁高蔗糖含量会损坏牙齿的珐琅质，也能增加患2型糖尿病的风险。
3
Studies have shown that using fluoride toothpaste helps increase the concentration of fluoride in the teeth, even in areas with water supplies containing high levels of the mineral.