The places Zheng passed by were where monsoon was very prominent, and the seasonal changes of prevalent wind would lend to seasonal changes of ocean current, thus greatly facilitating Zheng's voyage.

郑和航线所经历的地区是世界上季风现象最显著的地区之一。盛行风的季节性变动，带来了洋流的季节性变化，为郑和航海提供了优越的条件。

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Opponents of a Congressional plan to mandate a minimum amount of renewable energy for most utility companies say it will increase the cost of power in states where wind power is not prevalent.

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