Most Americans visit dentists to have their teeth checked. Dentists state that 2 visits a year are desirable. However, most people go only once a year. Americans visit dentists much more frequently than most other people in the world. Still, there are many adults who have never been inside a dentist s office. And some of these people are in need of a dentist s care. 大多数美国人去看牙医作牙齿检查。牙医指出，一年查两次是必要的。然而，大多数人每年只看一次。美国人看牙医比世界上大多数人都勤快，但仍然有些成人从未踏进牙医诊所半步，这些人当中有些是需要牙医照料的。 编辑推荐：2009年下半年公共英语考试报名汇总 名师指导公共英语阅读考试技巧 公共英语pets三级全真模拟试卷 公共英语pets二级语法讲解汇总