牙虫用英语怎么说

牙虫在英语中被称为 "cavities"。这个词来源于拉丁语 "cavitas"，意为 "洞"。牙虫是由细菌在牙齿上附着，产生酸，导致牙齿腐蚀，形成洞。
例句：
I need to go to the dentist because I have cavities. 我需要去看牙医，因为我有牙虫。
Cavities can be prevented by brushing and flossing regularly. 通过定期刷牙和用牙线清洁，可以预防牙虫。
The dentist said that I have several cavities that need to be filled. 牙医说我有几颗牙需要补牙。