后来朝着明显更难以复原的写作的演变似乎证明了这一点。
The subsequent evolution towards apparently less recuperable writing would seem to bear this out.
但是作为一本介绍南高加索的指南书，它既清晰又明了，实为一本难以逾越的佳作。
But as a clear, brief guide to the countries of the south Caucasus, it would be hard to do better than this book.
伊朗人太精明了以至于难以被一群扎着长头巾的长老们长期统治。
Iranians are too sophisticated to be ruled for ever by a clutch of old men in turbans.
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