英语语法分析

There is nothing on the fluoridation of water, and too little on nutrition.

书中也没有对饮水加氟法进行阐述，在营养学方面也较少被提及。

Oral health instruction, fissure sealing, fluoridation, caries filling, space retainer, deciduous root canal treatment, functional appliance.

口腔保健教育，窝沟封闭，儿童龋齿预防和治疗，预防性矫治。

Many studies and observations have demonstrated that drinking water fluoridation is the safest and the most economical public healthy measure.

国内外大量研究与观察证明饮水氟化是最安全、投入产出比最佳的预防龋齿的公共卫生措施。