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

each other互相；各自

The two plans meshed with each other smoothly.

這兩個計劃互相配合得很好。

The pupils sneaked on each other to the teacher.

學生相互向老師講了我的壞話。

they'll know as many as 5,000 words.他們可以識得五千個單詞

as many as和 ... 一樣多

As many as 500 workers work on the farm.

在這個農廠干活的工人多達500人。

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

這次空難中多達一百人喪生。

相關短語as many again加倍

I have books as many again as you.

我的書比你的多一倍。

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

只有上次一倍半的量。