- 1. 迁徙的鸟布满了灰白的天空。
- Migrating birds filled the pale sky.
《柯林斯英汉双解大词典》
- 2. 燕子在冬天迁徙到南方。
- Swallows migrate south in winter.
《牛津词典》
- 3. 大多数的鸟类不得不飞行很长的距离进行迁徙。
- Most birds have to fly long distances to migrate.
《柯林斯英汉双解大词典》
- 4. 现在，迁徙是一种自然的生存策略。
- Now, migration is a natural survival strategy.
来自互联网
- 5. 它导致大量企鹅和鲸鱼迁徙。
- It caused a great many penguins and whales to migrate.
来自互联网
- 6. 它们导致一些鸟类放弃迁徙。
- They have led some birds to give up on migration.
来自互联网
- 7. 不冬眠的一个补偿方式是天生的迁徙习性。
- One compensation for not hibernating is the built-in urge to migrate.
来自互联网
- 8. 在晚上迁徙的鸟呢？
- What about birds that migrate at night?
来自互联网
- 9. 为什么会发生野生动物濒临灭绝和迁徙的现象？
- Why did the near extinction and migrations of wild animals occur?
来自互联网
- 10. 然而，人类行为正在对动物迁徙产生不利的影响。
- Human behaviour, however, is having a detrimental impact on animal migration.
来自互联网
- 11. 一种观点认为，这些画是兽群季节性迁徙的记录。
- One opinion is that the paintings were a record of seasonal migrations made by herds.
来自互联网
- 12. 无需人工帮助的物种迁徙也只能维持几个月的时间。
- There are a few quarters left for species to migrate through without help.
来自互联网
- 13. 磷虾数量的减少和气温的升高可能迫使南极鲸迁徙。
- Shrinking krill population and rising temperatures could force Antarctic whales to migrate.
来自互联网
- 14. 无论如何定义，动物迁徙都远远不止是动物的移动。
- Animal migration, however it is defined, is far more than just the movement of animals.
来自互联网
- 15. 北美和南美的物种迁徙穿过地峡，现在开始互相竞争。
- North and South American species migrating across the Isthmus now came into competition with each other.
来自互联网
- 16. 鸟类在长途迁徙飞行之前，会用大量的食物喂肥自己。
- Birds will fatten themselves with heavy feeding in advance of a long migrational flight.
来自互联网
- 17. 他们使从南方迁徙过来的波斯瞪羚的后代可以生存下去。
- They subsisted offspring migrations of Persian gazelles from the south.
来自互联网
- 18. 鲑鱼在河流和海洋之间迁徙时也会携带危险的化学物质。
- Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.
来自互联网
- 19. 某些海鸟在每年春季迁徙到北方繁殖地时，以这些鸟蛋为食。
- Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds.
来自互联网
- 20. 动物在寒冷的冬天有三种主要的生存方式：休眠、适应或迁徙。
- There are three main ways that animals survive the cold in winter: sleep, adapt or migrate.
来自互联网
- 21. 当然，有些动物物种需要大面积的栖息地，有些则需要长途迁徙。
- There are, of course, animal species that require large areas of habitat, and some migrate over very long distances.
来自互联网
- 22. 有些鸟会飞到更温暖的地方迁徙过冬，在那里可以找到更多食物。
- Some birds migrate by flying to a warmer place for the winter, where they can find more food.
来自互联网
- 23. 当旅鼠的食物供应不足以维持种群时，一次特别的迁徙就开始了。
- When the lemmings' food supply becomes too low to support the population, a singular migration commences.
来自互联网
- 24. 除非有确凿的考古证据支持，否则我们应谨慎对待给出的迁徙日期。
- Dates given for the migrations should nevertheless be treated with caution, except where supported by hard archaeological evidence.
来自互联网
- 25. 它们阻止了鱼类迁徙，并改变了对本地物种至关重要的水生栖息地。
- They prevent fish migrations and change aquatic habitats essential for native species.
来自互联网
- 26. 岩石艺术让我们得知人类的迁徙：人们从哪里来，接下来可能去哪里。
- Rock art tells us about migration: where people came from and where, perhaps, they went next.
来自互联网
- 27. 他的定义比伯杰的更复杂，加入了区分迁徙与其他运动形式的五个特征。
- His definition is more intricate than Berger's, citing those five features that distinguish migration from other forms of movement.
来自互联网
- 28. 我们需要智慧和决心，以确保迁徙的物种能够在更长时间里继续它们的旅程。
- We will require wisdom and resoluteness to ensure that migrating species can continue their journeying a while longer.
来自互联网
- 29. 我们不能把植物给忘了，没有它们事先入侵陆地，就不会有其他的迁徙发生。
- We mustn't forget the plants, without whose prior invasion of the land none of the other migrations could have happened.
来自互联网
- 30. 对牙齿的分析还表明，纳-德内人和爱斯基摩-阿留申人后来还有过两次迁徙。
- Tooth analyses also suggest that there were two later migrations of Na-Denes and Eskimo-Aleut.
来自互联网
