Victoria Falls has had above average levels of rainfall this year.
维多利亚瀑布今年的降雨量高于平均水平。
This area receives 149 to 216 millimeters of rainfall a year on average, and the basins pass most of their time as saltpans.
这个区域的平均年降雨量为149至216毫米（小于1英寸），湖泊所在的盆地多数时候干涸为盐田。
And the arid region's rainfall levels were above the average of 50 centimeters per year from 2002 to 2008.
而从2002年到2008年，这一干旱地区的平均降水量只有50厘米每年。
Average rainfall has far exceeded that of last year, leading to extreme flooding conditions and is expected to get worse.
由于今年降水量均值高于去年，因此洪灾有进一步恶化的可能。
With an annual average temperature of 12 degrees centigrade, and rainfall of 590 millimeters, it has 220 frost-free days per year.
年平均温度在12摄氏度左右，降雨量为590毫米，平均每年有220天温度在零下。
With an annual average temperature of 12 degrees centigrade, and rainfall of 590 millimeters, it has 220 frost-free days per year.
年平均温度在12摄氏度左右，降雨量为590毫米，平均每年有220天温度在零下。
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