美国西南部半干旱地区的湖泊水位在上一个冰河时代似乎比现在更高，这一事实曾一度归因于降水增加。
The fact that lake levels in the semiarid southwestern United States appear to have been higher during the last ice age than they are now was at one time attributed to increased precipitation.
世界各地降水增加（雨，雪等），由湿度增加导致;
The rise in precipitation (rain, snow, etc) around the world, as a result of the higher humidities;
从季节角度上看，夏季降水的增加对全年降水增加贡献最大。
From the aspect of season, the precipitation increasing of summer makes the biggest contribution to annual precipitation.
应用推荐