3

• He can speak three foreign languages .
  他能够说3种外国语。
• Professor has contributed three chapters .
  教授已写了3章。
• The elevator does n't stop at floor 1 , 2 and 3 .
  电梯在一、二、三楼不停。
• The text falls into three paragraphs .
  这篇课文共分3段。
• Add three and seven and you will have ten .
  7加3等于10。