您要查找的是不是：
- an extinct fishlike vertebrate. 一种灭绝了的、像鱼一样脊椎动物。
- The great auk is an extinct bird. 大海雀是种灭绝的鸟类。
- This is an extinct species of fish. 这是一种已经灭绝的鱼。
- Level the city stone by stone to an extinct waste. 一块石头一块石头地夷平该市，使它成为一片没有人烟的荒原。
- Perhaps letter writing will become an extinct art. 也许写信将成为一种绝响。
- An extinct dinosaur came back to life! 一只灭绝的恐龙竟然复活了!
- An extinct volcano can no longer erupt. 一个灭绝的火山已不能再爆发。
- An extinct volcano can no longer erupt . 一个灭绝的火山已不能再爆发。
- An extinct volcano has ceased to be able to explode. 死火山已失去爆发能力。
- Solidified lava filling the vent of an extinct volcano. 岩颈填充死火山的硬化的火山岩
- extinct group of armored jawless fishes or fishlike vertebrate; 现已灭绝的无颚有甲鱼类或鱼状脊椎动物；
- 6. extinct group of armored jawless fishes or fishlike vertebrate; 现已灭绝的无颚有甲鱼类或鱼状脊椎动物；
- Trapped inside was an extinct breed of stingless bee. 陷入其中的是一只已经灭绝的无蛰针蜜蜂。
- A fish or fishlike vertebrate. 鱼状脊椎动物鱼或似鱼的脊椎动物
- Cuvier sees a tooth belonging to an extinct race of animals. 居维叶从一颗已经灭绝的动物牙齿中得到了发现。
- Scientists have discovered an extinct species of birds. 科学家们已发现了一种已灭绝的鸟类。
- 5. extinct fishlike jawless vertebrate having a heavily armored body; 已经灭绝的长有很重披甲的鱼形无颚动物；
- 2. extinct fishlike jawless vertebrate having a heavily armored body; 已经灭绝的长有很重披甲的鱼形无颚动物；
- Any of various extinct fishlike marine reptiles of the order Ichthyosauria of the Triassic Period to the Cretaceous Period,having a porpoiselike head and an elongated,toothed snout. 鱼龙三叠纪至白垩纪间的属于鱼龙目的水生爬行动物中的任一种，现已绝迹，该动物头象海豚，喙长，有牙。
- An extinct language of the Assyrians is regarded as a dialect of Akkadian. 亚述人的一种绝迹的语言认为属于阿卡得语的一种方言。
