'Hal' is an abbreviation for halitosis, from which he suffers.

“哈儿”是“哈口臭”的简称，它口臭的毛病不轻。

Bad breath, a.k.a. halitosis, can be more than a social inconvenience.

口腔异味即口臭，可能不仅仅是社交不便那么简单。

Around 25 per cent of the population has chronic bad breath, often called halitosis.

全球约25%人口患有慢性口臭，我们经常称之为“halitosis”。

This sensor showed high potential for simple halitosis diagnosis with your breath anytime anywhere in a very short time.

“这种传感器可以随时随地在极短的时间内对你的呼吸进行简单的口臭诊断。”

Repeated vomiting can lead to erosion of dental enamel, sialadenosis, which is swelling of the parotid gland, and halitosis, or very bad breath.

反复呕吐会导致牙釉质被胃酸腐蚀，唾液腺良性肥大，表现为腮腺肿胀，还有口臭。