billion in the month, are subtracted in the calculation of gross domestic product.
出自-2011年12月阅读原文
柯林斯高阶英汉双解学习词典释义
VERB
减;减去
If you subtract one number from another, you do a calculation in which you take it away from the other number. For example, if you subtract 3 from 5, you get 2.