While other creatures can communicate their basic needs and emotions to each other,其它的动物可以彼此交流基本需要和情绪

each other互相；各自

The two plans meshed with each other smoothly.

这两个计划互相配合得很好。

The pupils sneaked on each other to the teacher.

学生相互向老师讲了我的坏话。

they'll know as many as 5,000 words.他们可以识得五千个单词

as many as和 ... 一样多

As many as 500 workers work on the farm.

在这个农厂干活的工人多达500人。

As many as 100 people were killed in the air crash.

这次空难中多达一百人丧生。

相关短语as many again加倍

I have books as many again as you.

我的书比你的多一倍。

There were half as many again as there were last time.

只有上次一倍半的量。