剑桥词典all of the water , ice , and water vapor at or near the surface of the earth , such as the seas , clouds , and the water in and under the ground 水圈（地球表麪上或附近的所有的水、冰、水蒸氣的縂和，如海洋、冰川、雲層以及地上或地下水） 返回 the hydrosphere