並前往https://nai500.com/zh-hant/blog/2021/10/%E6%AF%9B%E5%88%A9%E6%BD%A4gross-profit-%E7%87%9F%E6%A5%AD%E5%88%A9%E6%BD%A4operating-profit-%E6%B7%A8%E5%88%A9%E6%BD%A4net-income/
