the watery layer of the earth's surface; includes water vapor
hydrosphere详细解释
hy.dro.sphere n.（名词）The waters of the earth`s surface as distinguished from those of the lithosphere and the atmosphere.水界：地球表面的水，与陆界和大气层相区别The water vapor in the earth`s atmosphere.大气中的水气 【引伸】 hy.drospher.ic
