polish up

US /ˈpɑː.lɪʃ ʌp/
UK /ˈpɑː.lɪʃ ʌp/
"polish up" picture
1.

完善, 润色

to improve something by making small changes to it

:
You need to polish up your presentation skills before the conference.
在会议之前,你需要完善你的演讲技巧。
She spent hours polishing up her essay.
她花了几个小时润色她的文章。
2.

擦亮, 打磨

to make something shiny by rubbing it

:
He needs to polish up his old shoes.
他需要擦亮他的旧鞋。
Can you help me polish up the silver cutlery?
你能帮我擦亮银餐具吗?