| 1. | There was also an aviary full of rare birds .
那里面还有装满稀有鸟类的鸟舍。 |
| 2. | So it is with the music of birds .
鸟类的鸣声也是如此。 |
| 3. | Amongst birds, the contest is often of a more peaceful character .
鸟类的斗争往往比较和平。 |
| 4. | Dialects occur in birdsong as well as in speech .
语言有各种方言，鸟类的歌唱也有各种地方调。 |
| 5. | It will be a base line for future bird studies all over the world .
这将是未来全世界研究鸟类的一个基准。 |
| 6. | They descend with a gliding motion that reminds one of the flight of birds .
他们下山时的滑翔动作，使人联想起鸟类的飞行。 |
| 7. | From man's earliest days the flight of birds has raised his wonder and desire .
从人类的早期开始，鸟类的翱翔就已经引起他的好奇和向往。 |
| 8. | I estimated that the winter of 1854-1855 destroyed four-fifths of birds in my own grounds .
我曾估计1854-1855年的冬季我住处的鸟类的死亡数为全数的五分之四。 |
| 9. | Infections have been found in sixty kinds of wild birds
已经发现6类野生鸟类的感染。 |
| 10. | He found a piece of fossil of an ancient bird
他发现一块古代鸟类的化石。 |
