Unbeknownst to her, she suffered from bad breath and no one would tell her, not ever her closest friends.(大家都瞞著她，她有口臭，沒有人會告訴她，即使是她最親密的朋友也沒有告訴她。)

Just remember that the plaque between your teeth can cause bad breath as well.(一定要記住牙之間的蝕斑也能引起口臭。)

Sometimes it takes a dog with bad breath, worse manners, and pure intentions to help us see.(有時候，這需要一只有口味有很多壞毛病的狗幫我們來弄清楚。)

Sugarless yogurt could help beat bad breath, tooth decay and gum disease.(無糖酸奶有助于緩解口腔異味、蛀牙和牙齦疾病。)

This is especially helpful if your bad breath remains after stepping up your oral hygiene.(如果你加強口腔衛生后，口氣的癥狀仍未改善，這些日記將幫助你進行診斷。)

Furry tongue or bad breath.(厚舌頭或者口臭。)

A: Do you happen to have any gum on you? I have bad breath.(A：你現在身上有沒有口香糖？我有口臭。)

Suppose you know that there is a type of chewing gum that will give you bad breath.(假設你知道有一種口香糖會讓你有不好聞的口氣。)

Smoking causes bad breath.(吸煙會導致口臭。)

Smoking also causes bad breath and gingivitis (gum disease), and increases risk of oral cancers.(吸煙還能導致口臭和牙齦炎（牙齦疾?。⒃黾踊伎谇话┑娘L險。)