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（地球表面上或附近的所有的水、冰、水蒸气的总和，如海洋、冰川、云层以及地上或地下水） 返回 the hydrosphere