We should make economical use of our money and time.

我们应该节省金钱和时间。

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OBJECTIVE: To provide references for rational, efficient and economical use of NSAID in the clinic.

前言：目的：为临床合理、有效、经济地选用非甾体抗炎药提供参考。

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They originated in the US over a century ago to help meet the demand for more economical use of land.

他们起源于美国一世纪前，促进更经济的土地使用需求。

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Interiors were characterized by the economical and innovative use of standard industrial products like aluminum pipe, factory lighting, and warehouse shelving with chemical and pharmaceutical glass and ceramic accessories. (You wouldn't want what your parents liked anyway.) The machine aesthetic of modernism was remade into an industrial arte povera of "found" components for the look that became known and celebrated as High Tech.

WSJ: When the Outrageous Became Mainstream

The PowerShot A1400 digital camera is also equipped with HD Video, and ECO Mode that gives users a camera that is full of features, yet easy to use and economical, allowing for a high-quality imaging experience at a great value.

ENGADGET: Canon PowerShot A2600 and A1400 offer modest feature bumps, little incentive to upgrade

Those looking to save money on their travel said they will skip hotels and stay with family or friends, take a shorter trip, use a more economical mode of transportation or spend less on shopping or sightseeing.

CNN: AAA: More travelers to hit the road during Labor Day weekend