据个人经验，这是我们需要反复学习的东西，尤其要注意成本在量上的增加。

In my experience, this is something we have to learn over and over again, especially as the size of the costs increases.

youdao

鉴于东亚地区到2020年所需要的能源设施(电厂、建筑物、道路等)近一半有待建设，这是成本效益最高的选择。

Since nearly half the region's energy capital stocks (power plants, buildings, roads) needed by 2020 are yet to be built, this is the most cost-effective option.

youdao

这是因为成长中的公司不仅需要维持其销售增长的运营成本，还有大量的固定资产投入需求。

That's because growing businesses have both working capital needs that increase in proportion to sales growth and significant requirements for fixed asset investments.

youdao