I think the problem of the lost generation should be solved by society as a whole.

His actions are not reasonable at all.

Draw a straight line.

He is a carnivorous man, being aggressive in relationships.

He has fundamental knowledge of mathematics.

His recovery was truly miraculous.

He was known as a sinologue.

I bought new clothes through mail order.

He is interested in diachronic linguistics studies.

She is still an innocent girl, with a pure heart.