The urban legend of the slit-mouthed woman terrifies children.

His words reminded me of the proverb 'good advice may be uncomfortable to hear.'

There was a major outbreak of foot-and-mouth disease in Japan in 2000.

I use mouthwash every day after brushing my teeth.

He learned how to operate the anti-tank gun.

His words are always sweet on the surface but venomous underneath.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.