Want to be a billionaire?
A billion seconds is 31 years. Now what will you do with it?
想成为亿万富翁吗？
十亿秒等于31年。现在你要用它做什么？
Want to be a billionaire?
A billion seconds is 31 years. Now what will you do with it?
想成为亿万富翁吗？
十亿秒等于31年。现在你要用它做什么？