round off

phr

• ① 使成圆形;使成圆滑

• ② 使完全;使完美;完成(文章)
  • Round off this passage.把这段文章完成。
  • He rounded off his career by being appointed a director.由于被任命为董事,他的事业达到了完美的境地。

• ③ 化为整数;四舍五入