美[?k?st??k??n] 1 . 30 percent of reptiles, birds, and fish are currently threatened with extinction .
目前，30%的爬行動物、鳥類和魚類面臨滅絕的危險。
來自柯林斯例句
2 . The centuries-old ritual seems headed for extinction .
延續了幾個世紀的儀式似乎要面臨消亡。
來自柯林斯例句
3 . The island's way of life is doomed to extinction .
這個島上的生活方式注定要消失.
來自《簡明英漢詞典》
4 . The animals were ruthlessly hunted to the verge of extinction .
這些動物由于遭到無情的捕獵而瀕于滅絕.
來自《現代漢英綜合大詞典》
5 . The plant is now in danger of extinction .
這種植物現在有絕種的危險.
來自《簡明英漢詞典》
1.no longer in existence;
the extinction of a species
2.no longer active; extinguished;
the extinction of the volcano
3.the reduction of the intensity of radiation as a consequence of absorption and radiation
4.complete annihilation;
they think a meteor cause the extinction of the dinosaurs
5.a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
6.the act of extinguishing; causing to stop burning;
the extinction of the lights
