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  1. Oxford American Dictionary

    fish ladder

    • IPA[fiSH ˈladər]
    • n.
      a series of pools built like steps to enable fish to bypass a dam or waterfall.

    • noun: fish ladder, plural noun: fish ladders

    • 更多解釋

    fish ladder

    • n.
      a series of pools built like steps to enable fish to ascend a dam or waterfall.

    Oxford Dictionary