round off

round offround off1.■使圆满结束The performance was rounded off with a one-act play.演出以一个独幕剧圆满结束。2.■弄圆Take a piece of sandpaper and round off the edges of the frame.拿张砂纸把框架的边磨圆。

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round off1.■把…磨圆：He rounded off the sharp corners of the table with a piece of sandpaper.他用一块砂纸把桌子的各个尖角磨圆。2.■使圆满结束：We decided to round off our tour of Europe with a brief visit to Madrid.我们决定去马德里作一次短暂的访问，以此结束我们的欧洲之行。3.■把(数字)变成整数：The answer should be rounded off to three decimal places.答案应四舍五入至三位小数。