capital是资本的意思，而revenue则是收入的意思，区别可以从以下例子看出：
Capital is the money or assets you will put on for investment , and the revenue is the income you expect to coming. 资本是您将用于投资的金钱或资产，收入是您预期的收入。
乒乓球教程
水利万物而不争,
而万物莫能与之争。
