n.收益性；盈利能力
ROI tends to emphasize short-run profit rather than long-run profitability. 片面强调短期收益而忽略长期收益性。
Government-owned La Poste, too, lags in profitability and speed of delivery, though France's size and population density plays a part too. 国家所有的法国邮政，也在收益性和投递速度方面滞后，尽管，法国面积大，人口密度高也是部分原因。
Understand the link between reliability engineering and company profitability. 意识到可靠性工程与公司盈利能力的关联。
