Some psychologists warn Viagra has become a lifestyle drug that encourages people to neglect underlying mental or physiological problems that can cause impotence.

一些心理学家警告说，伟哥已成为一种生活方式型药物，它助长人们忽视可能会导致阳痿的一些潜在的心理或生理问题。

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Given the general feeling of impotence insolving other big problems at this year’s Davos, Haiti offered an opportunityfor people to feel there was at least something useful they could do.

今年的达沃斯在解决大问题上给人一种普遍的无力感，海地为人们提供了一个机会，让他们感到至少有些事情中还可以发挥作用。

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In addition, 81 percent of surgery patients had impotence problems compared with 44 percent in the observation group.

MSN: Prostate cancer surgery fails to cut deaths in study

For someone like me who wants to work on larger system problems, residency is an exercise in impotence.

FORBES: Why Some Elites Know Not What They Run

In a county with high unemployment and low wages, the impotence of local government in the face of such problems might gradually prove to be the undoing of the Liberal Democrats.

ECONOMIST: Local elections