Be forewarned, however, that this can be a slow and often futile process.

但你要做好心理准备，因为这通常是漫长而且徒劳无功的过程。

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The north's campaign there, however, appears increasingly futile.

然而，北方在那里的行动显得越发不足道。

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However, the endless toil of the puzzle-solvers becomes increasingly futile because of the growing blind spot of those who work within the prevailing paradigm.

然而，普遍范式的这些解难者无休止的辛劳将变得越来越徒劳，因为对于那些在普遍范式内部工作的人来说，普遍范式的盲点变得越来越增大。

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