1. Poison makes people sick; some poisons kill people as well as birds and animals.
    毒物会使人生病；有些毒物不但会毒死鸟和动物，还会毒死人。

2. Many of these trees are in our rain forests where thick areas of plants and trees, home for many birds and animals, are disappearing.
    遭受砍伐的这些树木许多是热带雨林中的树木，那里茂密的植物和树木原本是许多鸟类和动物的家园，现在却正在消失。

3. Cats are amoral; they can´t be censured for killing birds.
    猫不受道德约束，它们杀死鸟儿也不会受责难。

4. Cats and birds are seldom compatible.
    猫和鸟很少能和睦共处。

5. Certain birds, like pigeons, also seemed to be especially noisy, and were reported to be flying in unusual patterns before the earthquake.
    有些鸟，如鸽子，也似乎显得特别聒噪，据说地震前它们飞行的方式也与往常不同。

6. I could hear birds whistling at the edge of the woods, and the Prussians drilling in the meadow behind the sawmill.
    我可以听到鸟儿在树林边的叫声和普鲁士士兵在锯木厂后边草地上操练的声音.

7. I could hear birds whistling at the edge of the woods, and the Prussians drilling in the meadow behind the sawmill.
    我可以听到鸟儿在树林边的叫声和普鲁士士兵在锯木厂后边草地上操练的声音.

8. Fifty million years later, both birds and mammals were well established.
    5,000万年后，鸟和哺乳动物都有了稳固的形态。