The heaviest bird on Earth is the ostrich.

世界上最重的是。

Why did the ostriches cross the road?

为什么要过马路？

Ostrich lay eggs in the open.

将蛋产在户外。

Is it penguins, alligators, sea turtles or ostrich?

是企鹅、短吻鳄、海龟还是?

They have ostriches at this zoo.

这家动物园里有。

I think it's like an overgrown ostrich.

我觉得它就像发育过的。

But a penguin can't fly and an ostrich can't fly.

但是企鹅不会，也不会。

The humming-bird is the smallest and the ostrich the largest of birds.

是最小的类，是最大的类。

Most people, you know, think ostrich — and they think that's big.

大多数人认为很大。

Zebra started chasing him and then the ostriches got into the mix as well.

斑马开始追逐奔跑，然后也加入进来。

Some believe that ostriches bury their heads in the sand when frightened.

有些人认为在受到惊吓时会把头埋进沙子里。

Soon, almost every ostrich has its own passenger.

很快，几乎每只都有了自己的乘客。

Teacher asked me how many legs an ostrich has, and I said three.

老师问我有几条腿，我说有三条。”

The flight feather of an ostrich looks like this.

是的行羽毛看起来像这样。

And it's also about the accessorising as well. We've got this very fashionable ostrich feather.

这也是关于配饰的。我们有这种非常时尚的羽毛。

Now we're going to write the letter 'O', as in 'ostrich'.

现在我们要写‘ostrich’这个单词中的字母 O。

Other birds, like the ostrich, don't need to fly because they can run so fast.

再比如，它们不需要行，因为它们跑得非常快。

We all know ostriches are flightless.

我们都知道不会。

The ostrich is chiefly valued for the beautiful white feathers of its wings and tail.

主要是因其翅膀和尾巴上美丽的白色羽毛而受到珍惜。

Experts say the birds do not really do, or think, this.

专家表示，并不会真的这样做，也不会这样认为。