动物世界的英文：
animal world

(of animals) a muzzle
口套

The is an animated machine.
这个一台自动的机器。

multiparous animal
多胎动物

Animal conservationists disapprove of experimenting on animals.
动物保护主义者不赞成用动物做试验.

Tiger is an animal feeding off smaller animals.
老虎是以较小动物为食的动物。

This may be normal in the physical world, but there is no reason for it in the world of software.
在物理世界这是正常的，但没有理由在软件世界也这样。

They wanted to revolutionize the whole world.
他们要在全世界发动革命。

That are inexorably shaping the world of tomorrow.
这将无情地影响明日的世界。

The world is like a fleeting show.
人世如白驹过隙。

There is so much infelicity in the world.
人世间有很多不幸的事。