He often behaves strangely because of his 'chuunibyou' (middle-school 2nd year syndrome).

He is showing behavior characterized by 'chuunibyou'.

She was diagnosed with collagenosis.

Bovine spongiform encephalopathy is a fatal disease that infects cows.

He is so engrossed in his work, it's like 'Wu's cow gasping at the moon'.

He reacts excessively to even small problems, like the proverb 'Kureushi Tsuki ni Aegu' which means 'excessive fear'.

She is very smart, but as the proverb goes, 'A clever woman can't sell a cow,' she can't do everything well.

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.

He cautioned not to speak ill of others, saying, 'Illness enters by the mouth, and disaster does not come out of it.'