在法国，信用卡公司创建了 EMV，部分原因是电话垄断的效率低得令人抓狂，而且价格昂贵。

In France, card companies created EMV in part because the telephone monopoly was so maddeningly inefficient and expensive.

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事实上，“变得更有效率”是问题的一部分。

In fact, "becoming more efficient" is part of the problem.

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如今，节能的关键是效率：如何仅用一小部分能源就能达到同样或更好的效果。

These days conservation is all about efficiency: getting the same—or better—results from just a fraction of the energy.

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