halitosis

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But chronic bad breath, or halitosis, can result in an embarrassing social situation or even be a clinical hallmark of an underlying medical condition.
但是慢性口腔异味，或口臭，会招致尴尬的经历，甚至成为潜在疾病的临床表现。
There’s a slew of things that can cause bad breath from poor dental hygiene to digestive problems and smoking. Fortunately there are ways to stop halitosis in its tracks.
从不良的口腔卫生到消化问题以及吸烟等诸多因素都会引起口臭，不过幸好有一些方法可以立刻去除口臭。
The smell of purulent sputum incubating deep within a lung may waft its way up the bronchial tree, resulting in serious halitosis.
肺中的浓痰的气味沿着支气管呼出来导致严重的口臭。

Or any other molecule: if quantum cascade lasers become really cheap, you might never be in danger of leaving the house with halitosis again.
ECONOMIST: Lasers