動詞 round off:

1. make round
   同義詞：round, round out
2. bring to a highly developed, finished, or refined state
   同義詞：polish, round, polish up, brush up
3. express as a round number
   同義詞：round down, round out, round

1. He decided to round off his trip to Europe with a brief visit to Germany.
   他決定以對德國作短暫游覽來結(jié)束他的歐洲旅行。
2. Let's round off these figures to the nearest hundred.
   讓我們把這些數(shù)字用近似的百位整數(shù)來表示。
3. A year or two here will round off some of his rough corners.
   在那里呆上一兩年會使他變得文雅一些。