Groundwater has very important eco-value in arid and semi-arid regions. 摘要干旱半干旱地区地下水具有重要的生态价值。
The micro-meteorological conditions are advantageous for forming soil condensate in arid and semiarid regions in north China. 中国北方干旱半干旱地区的气象条件有利于土壤凝结水的形成。
windy and sandy regions怎么读 windy and sandy regions是什么意思