This product is suitable for metro or other D. C. area with much requirements for security and reliability.

该产品适用于城市交通地铁或轻轨或安全性、可靠性要求较高的直流用电区域。

youdao

I am now a city dweller, a resident of the Capitol Hill neighborhood of Southeast Washington, D. C. I ride to work on the Metro.

我现在成了城里人，住在华盛顿特区东南的国会山附近。我坐地铁上班。

youdao

The D. C. Metro was an ideal spot to use the Nikon's projector because of its low light and white concrete walls.

华盛顿的地铁是使用尼康内置投影仪的理想地点，因为这里灯光很暗，壁也是白色的。

youdao

C. metro areas also anticipate a significant upswing in hiring for the next quarter.

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C. metro area, said it expected to restore power by the end of Wednesday to 90% of its customers who lost electricity.

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C. metro area, according to Economic Modeling Specialists, an employment-data firm.

WSJ: Washington, D.C.: The New Boomtown