話說 ﹐ 呢班康州嘅牙醫決定 想令到病人更頻密地刷牙 ﹐ 而且用牙線清理牙齒 。 而佢哋利用咗一個變量 ﹕ 佢哋想要令人驚怕 。
That said, the Connecticut dentist decided he wanted his patients to brush their teeth more often and floss their teeth. And they take advantage of one variable: they want to be scary.