分类：教育/科学-外语学习
问题：threeandonehalfbillion/threeando? 
three and one half billn /three and one half 是3.5的意思吗？
回答：three and one half billion   表示“35亿”。
three and one half  你理解的对，是“3.5”的意思。

Their capital is three and a(one)half billion yuan. 他们的资本是三十五亿元。
three and a half years= three years and a half 三年半

其他依次类推。