Despite the laments of pining pop stars and poets, U.S. researchers now think breaking up may not be so hard to do.

尽管流行歌手和诗人总把失恋说的很痛苦，但近日，美国研究人员称，分手可能没那么难。

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But with her supporters pressing her to stand, it will now be hard for her not to do so.

不过她的支持者们强烈要求她进行反击，现在这对于她来说并不很困难。

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Because the economy is so bad, gauging the success or failure of the stimulus will be hard to do for a long time.

因为美国的经济状况非常糟糕，以致于在较长一段时间里都难以对经济刺激计划成功与否做评判。

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What is certain, however, is that -- having telegraphed its willingness in principle to do so -- the United States will be hard pressed to resist demands that will make the treaty even more unacceptable to the Senate than it is at present.

CENTERFORSECURITYPOLICY: Center For Security Policy

"It's very hard to be so established in the art world that you can do no wrong, " he says.

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This is a common scientific activity that cannot be automated by statistics, no matter how often or how hard people try to do so.

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