The Six Sigma Black Belt should be able to compute the value of money held or invested over time, including present value and future value of a fixed sum.是什么意思_The Six Sigma Black Belt should be able to compute the value of money held or invested over time, including present value and future value of a fixed sum.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句