It's a metropolis, a home to millions of ants.这是一个大都会，数百万只蚂蚁栖息在这儿

millIons of成百万的, 许许多多的

There are millions of living things on the earth.

世界上有数以百万计的生物。

There were millions of people in the square.

广场上有好多好多人。

The colony needs a huge supply of food.这个蚁群需要大量食物供应

supply of劳动力供给量

Our country has a bountiful supply of food.

我们国家有充足的食物供应。

He had exhausted his supply of water.

他已耗尽了全部供水。

they exist in different shapes and sizes.形状和尺寸却各自不同

exist in存在于

That word doesn't exist in English.

英语中没有这个字。

The heads of these big-jawed individuals are not full of brain... but brawn.这一只只大颚蚂蚁脑袋算不上聪明，力气倒是不小

full of充满 ...

She is always full of whims and fancies.

她老是充满怪念头。

She has a book full of cuttings about her film.

她有一本书贴满了关于她的一些影片的剪报。