您要查找的是不是：
- extinct radionuclide 熄灭的放射性核素
- Nothing could rekindle her extinct passion. 她激情已逝，无从心回意转。
- My hope of getting some employment was extinct. 我要找到工作的希望落空了。
- The passenger pigeon is extinct. 旅鸽已绝种。
- Dinosaurs have been extinct for millions of years. 恐龙已绝种几百万年了。
- A genus of extinct, large, flightless birds native to Madagascar. 象鸟，隆鸟一种不会飞的巨鸟，产于马达加斯加岛，现已绝种
- Many animals and birds are now extinct. 许多鸟兽现已绝种。
- The great auk is an extinct bird. 大海雀是种灭绝的鸟类。
- The extinct Goidelic language of the Manx. 马恩岛语已经绝迹的马恩岛戈尔伊德语
- Until recently,the wolf was almost extinct. 到最近，它们已濒临灭绝。
- Tending to extinguish or make extinct. 使灭绝，使消亡趋于灭绝或使灭绝的
- This is an extinct species of fish. 这是一种已经灭绝的鱼。
- This species will be extinct in a few decades. 几十年后这个物种将会灭绝。
- Radionuclide tracer analysis is a third important method. 第三种重要方法是同位素示踪分析。
- People have propose all sort of hypotheses to explain why dinosaur have become extinct. 人们提出种种假设，试图说明恐龙为什么会灭绝。
- Such women,while they do exist,are nearly extinct. 这样的女人，尽管还存在，但已近乎绝迹。
- The extinct exotic bird's feather contains zinc. 那种已绝迹的珍奇的鸟的羽毛中含锌。
- Then Hades will become extinct forever. 不复存在。
- Servants are now almost extinct in modern society. 在现代社会里奴仆已近乎不复存在。
- Lots of birds have been extinct. 许多鸟兽现已绝种。
