WHILE foods such as garlic can be the culprit, as can a tooth infection, the most common cause of bad breath (halitosis) is an overgrowth of the bacteria which normally live in the mouth or throat.

• 虽然导致口臭的原因可以归咎于象大蒜这样的食物，又或者是因为牙龈发炎，但是最为常见的口臭原因是在于，口腔和喉咙内的细菌过渡滋长。