您要查找的是不是：
- A certain extinction rate is essential for evolution. 一定的灭绝率，对于进化来说是必要的。
- Recent advances in comparative methods have made it possible to identify biological or geohistorical factors affecting speciation or extinction rates. 比较方法的最新进展使鉴定生物学或历史地理学因素对物种形成和灭绝率的影响成为可能。
- At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
- Analysis of Extinction Rate Characteristics in LD Wavelength Conversion LD实现波长变换的消光比特性分析
- We may live to see the extinction of the whale. 人类或许能亲眼见到鲸的灭绝。
- The race was threatened with extinction. 这个种族这时眼看要灭绝了。
- 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。
- What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少？
- Dinosaurs have been extinct for millions of years. 恐龙已绝种几百万年了。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- They charge a fixed rate for each transaction. 他们对办理的每项业务收取一定的费用。
- The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
- At that rate, he ought to be punished. 如果那样，他应该受到惩罚。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- His movie of the extinction of dinosaurs was a great success. 他的关于恐龙灭绝的电影取得了巨大的成功。
- Above rate applicable until further notice. 除非另有通知，上述运费率适用。
- At any rate we must go on Tuesday. 无论如何，我们必须在星期二走。
- The car is going at the rate of60 miles an hour. 汽车以每小时六十英里的速度行驶。
