But sometimes, however imperfectly, you can make progress.

但是有时，你可以进步，虽然不尽完美。

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However imperfectly, the American tradition has remained true to the intention of the founders, providing a long string of affirmative answers to their original experimental question.

无论多么不完善，美国的传统始终忠实于建国者的意图，为他们最初实验所提出的问题提供了一长串肯定答案。

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Most scientific discoveries can be boiled down to a sound bite, however imperfectly.

WSJ: Matt Ridley on the Higgs Boson | Mind & Matter

"This logic represents a fundamental challenge to the principles on which, however imperfectly, world peace and stability have rested for the last 58 years, " Annan told the U.N.

CNN: Chirac: Iraq war undermined U.N.

Let us hope that the advances of recent times will reawaken a sense of awe and well-being, that we will rest easy in the knowledge that there is indeed a God and that we will rediscover and reinvigorate the principles--however imperfectly adhered to--that created this nation: life, liberty and the pursuit of happiness.

FORBES: Fact and Comment