In the rainless pre-monsoon months between January and May, about one day in five saw the Khumbu valley blanketed in a dense brown cloud.
一月至五月是少雨的前季风时期，孔布山谷平均每五天中就有一天笼罩在厚厚的棕色烟云下。
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At this time there was no mention that any climbing restrictions would be imposed on the climbing community during the pre-monsoon climbing season of 2008.