But there is also something ennobling about the enterprise when it is done properly.

但也有一些关于它的时候是做得好的企业崇高。

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In some places, the practice has been blamed for air pollution and gas leaks that have ruined well water, but the Obama administration and many state regulators say the practice is safe when done properly.

WSJ: Fracking coalition upsets both greens and drillers

In some places, the practice has been blamed for air pollution and gas leaks that have ruined well water, but President Barack Obama's administration and many state regulators say the practice is safe when done properly.

WSJ: Sierra Club blasts new plan to improve fracking

When done properly downloadable content can add a great deal of value to games, but locked on-disc content and day-one DLC can hurt video game brands.

FORBES: Why Day-One DLC Isn't Just Bad For Gamers, It's Bad For Business