The explosive growth of mobile money has sharply reduced the costs of financial transactions.

手机钱包的爆炸性增长大大削减了金融交易成本。

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At the same time, improvements in wind turbine design and technology have reduced the costs of wind power substantially.

与此同时，改进风力涡轮机的设计和技术，也已经大幅度地降低了风力发电的成本。

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Costs have been reduced by 20% over the past year.

过去一年，各项费用已经减少了20%。

《牛津词典》

So there's a lot of what economists call transactions costs. With the Internet, that's drastically reduced."

VOA: special.2010.11.22

The deal greatly reduced his transportation costs.

VOA: special.2010.02.25

Furthermore, the FDA granted approval for these two new drugs quickly, which also reduced the costs of drug development.

FORBES: The Power Of Digitizing Human Beings

In this past half-century that shipping container has reduced the costs of trade enormously: so whatever had happened to tariffs we would have expected trade barriers to fall and trade itself to rise.

FORBES: Tariffs and Trade: The Tariff Level Isn't the Most Important Thing

But then private operators, anticipating a surging demand for capacity thanks to the growing volume of internet traffic and benefiting from technological advances that sharply reduced the costs, challenged this set-up with an explosive period of investment in new cable routes.

ECONOMIST: Booms and busts