Maintaining a regular income is a constant battle as the climate in this semi-arid country is prone to severe, freezing winters and extremely dry summers.
蒙古位于半干旱地区，其气候易受严寒天气和极其干旱夏季天气的影响，正因为如此，牧民们总是要想方设法地维持稳定收入。
Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climate variations and human activities.
有各种原因造成的土地干旱退化，半干旱和干燥低湿地区。比如，气候变化和人类活动所致。
Based on the general trend of getting arid gradually, the climate in the region experienced several marked cold-warm and dry-humid fluctuations since Late Pleistocene.
表明自晚更新世以来该区气候在逐渐变干的总趋势的基础上，经历了多次明显的冷暖与干湿波动。
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