英语语法分析

Coffee also contains trigonelline, an antibacterial compound that not only gives it a wonderful aroma but may be a factor in preventing dental caries.

咖啡还含有葫芦巴碱，这是一种抗菌的化合物，它不仅提供良好的香气，而且可能是预防龋齿的一个因素。

This type of X-ray is not always effective for finding caries.

进行这种X光照射并不是一定有发现蛀牙的效果。

Urban-rural differences in dental caries of 5-year old children in Scotland.

《苏格兰五岁儿童龋齿的城乡差异》，凯特·a·列文等，爱丁堡大学。