• 1. extinct species: 灭绝的物种
• 2. an extinct species: 已灭绝的物种
• 3. Rescue extinct species: 拯救灭绝的物种

更多释义

• 1.Boundary clay layers are used by scientists to determine the rate at which an extinct species declined.
  边界粘土层被科学家用来确定一个灭绝物种衰落的速度。
  dict.yoduao.com
• 2.An extinct species or race of human beings, Homo neanderthalensis, associated with Middle Paleolithic tools.
  作为已灭绝物种或人类种族，尼安德特人与旧石器时代中期的工具有关。
  dict.yoduao.com
• 3.A technology used to develop new medical treatments might one day revive endangered or extinct species.
  科学技术常常能带来新的医学疗法，有一天这些新疗法可能会拯救濒危物种，甚至重现灭绝的物种。
  dict.yoduao.com

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