They have only a fine distinction between them.

它们的区别很细微。

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There is a fine distinction between the two words.

这两个字之间有细微区别。

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There is a fine distinction between ingenuity and craziness.

机智与疯狂之间有些细微的差别。

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But there is a fine distinction and a world of difference between a policy of advocating democracy and a policy of imposing it.

ECONOMIST: Democracy and the Arabs

As both make clear, Audubon's distinction was that he was a truly fine artist: his birds appear lifelike and as part of their natural surroundings, a welcome change from the stiff depictions used by earlier ornithologists such as Wilson.

ECONOMIST: John James Audubon

The fine distinction in the NIH policy created the possibility of a private market for supplying stem cells for publicly funded research.

CNN: Looking for middle ground in a minefield