In arid climates, surface water is generally better than water in headwater areas, but poorer downstream.

  • 在干旱气候的上游区, 地表水一般较地下水好, 但下游的地表较差.

  • 互联网摘选 2025-01-18 16:20:51

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句