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。

《柯林斯英汉双解大词典》

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。

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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。

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In a year of average rainfall, its output should be around 180GWh of electricity.

BBC: Glendoe hydro electric scheme resumes operations

Sandwiched between two of the world's most famous deserts - the Namib and the Kalahari - Namibia is the driest country in sub-Saharan Africa, with less than 370mm of rainfall on average each year.

CNN: Namibia country profile: moving on from a difficult past

Our main concerns are for next year because one of three long range forecasts for rainfall are predicting a drier than average start.

BBC: Jersey water stocks improved by heavy rain