坪山区基础教育科09年旱灾 今年我们国家又出旱灾！ 据中国气象局网站消息，截至目前，由降水异常偏少和.均气温较常年同期偏高导致的气象干旱已波及中国12个省份。北方冬麦区旱情
宝宝吃奶后嘴唇一圈白案 Water is very important for us. If you don't have water for three days, you will die. We We use it to cook, make electricity, put out fires and so on. We use millions of liters of