Four is the dry weather environment. Born in the north of the sandstorm multiple spring, and rain after a period of time within a won "t happen very good evidence is dust storms."

四是干旱的气候环境。沙尘暴多发生于北方的春季，而且降雨后一段时间内不会发生沙尘暴是很好的证据。

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Four is the dry weather environment. Born in the north of the sandstorm multiple spring, and rain after a period of time within a won "t happen very good evidence is dust storms."

四是干旱的气候环境。沙尘暴多发生于北方的春季，而且降雨后一段时间内不会发生沙尘暴是很好的证据。

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