“哎哟,哎哟……”一听声音就知道是我的牙又开始疼了。就在这周六晚上,我正津津有味地吃西瓜,凉凉的西瓜汁流入我的蛀牙洞里,刹那间牙就剧烈地疼了起来。这时,妈妈闻声赶来,看到我捂着腮帮子痛苦的样子,关切地问:“怎么了,菲菲?是不是蛀牙又疼了?”我哭 “Oh, hey ... ” I heard the sound to know my teeth began to hurt again. Just this Saturday night, I was enjoying the watermelon relish, cool watermelon juice flow into my cavities, the moment the teeth painful up. At this moment, my mom rushed to see me grimacing in her cheeks and asked with concern: "What happened, did Fifi?