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

By training the orbicularis oris muscle, your expressions become more expressive.

He said, 'Heaven helps those who help themselves,' and tried to solve the problem on his own.

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

He is truly a person who embodies the saying, 'A man of virtue will naturally attract admirers.'

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.