coals to Newcastle

• 多余的东西

词汇搭配

• send coals to newcastle 徒劳无益(多此一举)...
• carry coals to newcastle 做徒劳无益的事(多此...
• bring coals to newcastle 多此一举(做徒劳无益...
• take coals to newcastle 做徒劳无益的事(多此...