He likes to take a walk in the park at dusk.

He is interested in diachronic linguistics studies.

He is interested in synchronic linguistics.

He has been committing misdeeds for many years, but finally the time for repayment has come.

He said, 'A nameless star comes out in the evening,' teaching me that achieving a goal is not easy.

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

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

He is truly demonstrating talent that surpasses his master, just as the saying 'the student has surpassed his or her teacher' goes.