| 1. | Each moment is the fruit of forty thousand years . 每一时刻皆是四万年的结晶。 |
| 2. | It was dated by the potassium-argon method to 1. 8 million years old . 由钾氩法测定其年龄为180万年。 |
| 3. | I originally said this struggle was going to go on for ten thousand years . 我曾经说过这场斗争要进行一万年。 |
| 4. | The site was marshy from about 3. 3 million to 3. 1 million years ago . 这里在大约330万年到310万年前是一个沼泽。 |
| 5. | Beginning nearly 10, 000 years ago, man adopted animal husbandry practices . 约在一万年以前,人类就开始从事畜牧业的工作。 |
| 6. | A fiery steed is not trained in a courtyard , nor does a pine grow sturdy in a greenhouse . 院子里练不出千里马,温室里长不出万年松。 |
| 7. | The consolidation of the crust can hardly have occured less than 20 or more than 40 million years ago . 地壳的凝固不会少于2000万年,或多于4000万年。 |
| 8. | To have contemplated human life for forty years is the same as to have contemplated it for ten thousand years . 沉思40年人生与沉思一万年人生没有两样。 |
| 9. | Throughout most of the 2 million years of human existence on earth, humanity's numbers have been few . 人类生存在地球上已有200万年的历史了,其中大部分时间地球上的人的数量少得可怜。 |
| 10. | It seemed that man was making a real effort to understand the seasons 20, 000 years earlier than has been supposed . 看来人类在比我们设想的还要早二万年就已经在认真努力弄懂季节的变化了。 |