Old people often try to economize on heating, thus endangering their health.

老年人常常想方设法节约用暖气，结果损害了他们的健康。

《牛津词典》

We must economize on fuel.

我们必须节约燃料。

《新英汉大辞典》

The power enterprises shall economize on water.

电力企业应当节约用水。

youdao

In a sane universe, people would economize on land by building more and more densely.

FORBES: Restrictive Zoning Is Crippling Silicon Valley's Transit Options

Employers have more flexibility in the long run and will find ways to economize on the higher-priced labor.

FORBES: The Minimum Wage Delusion, And The Death Of Common Sense

Meanwhile, Time Warner is apparently looking for ways to economize on its Manhattan real estate holdings, whether by selling and leasing back the Time Warner Center on Columbus Circle or by consolidating all of its New York operations there.

FORBES: Time Warner Shopping Time Inc. Likely Price Tag? Try $2.5 Billion