2000 in English can be said as "two thousand". This comes from the way numbers are typically written in English, with the largest place values (thousands, millions, billions, etc.) being followed by the corresponding names for those place values.

For example:

2000 = two thousand

5,000 = five thousand

100,000 = one hundred thousand

Here are some example sentences using the number 2000 in English:

I was born in the year 2000.

The 2000s were a great decade.

The movie was released in 2000.

In Chinese, these sentences could be translated as:

我出生于2000年。

2000年代是个好时期。

这部电影于2000年发行。