polish up

Trump’s dishonest demagoguery about immigrants, aimed obviously at stoking people’s fears about immigrants coming to the United States, is polished up by Republicans until it shines with the glow of public policy.

The Cerritos firm’s sales representatives went through six three-hour training sessions to polish up their skills in professional presentation, proper attire, attending lunch meetings and client interactions.

“Our whole group had a great summer. The guys got in shape, and now we’re just polishing up on the playbook. The boys are hungry. The boys are hungry.”

A Costa Rican who works in the construction industry tells me that his AI-powered keyboard has been useful for polishing up his technical vocabulary in English.

He didn't go back and polish up the verse.