The researchers pointed out that low-frequency processes, such as fluctuations in stream flow and groundwater levels, would not usually be apparent to human populations.

研究人员指出，低频过程诸如河流流量和地下水水位的波动，通常不会对人类产生明显影响。

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Traditional water right trading between different users may bring third-party effects as reducing the instream flow of the intermediate stream and downstream.

不同用户之间的传统水权交易可能会带来第三方影响，因为这会减少中间流和下游的入流。

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Stream flow, slowly away a few leaf, also taking the memory.

溪水缓慢地流动着，带走了几片落叶，也带走了记忆。

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