| 词组 | billion |
| 释义 | billion A billion is a thousand million, or 1,000,000,000. In January 1977, there were 4 billion people in the world. In Britain, some people use billion to refer to a million million, or 1,000,000,000,000. |
| 随便看 |
英语用法大全包含2070条英语用法指南，基本涵盖了全部常用英文词汇及语法点的翻译及用法，是英语学习的有利工具。