完成, 把...修圆磨光
[电] 结束

round off的用法和样例：

例句

They rounded off the evening by singing a song.他们唱了一首歌，圆满结束了这个晚会。
The performance was rounded off with group-singing.演出在合唱声中圆满结束。
He made the 90-mile round trip in one hour.他一个小时完成了九十英里的来回旅程。
Have you done all this work off your own bat?这些工作都是你独立完成的吗？

词汇搭配

round off（使）圆满结束...

【近义词】

round圆的
round out圆满完成
polish光泽
round down松放
brush up擦亮
polish up改善

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学英语单词

单词：round off