It came from three words. Dynamic,meaning a force.

VOA: special.2010.05.30

and randomly find like two or three words or any specific words you want to know.

然后随便找两三个你想知道的单词。

有这样的困难 - SpeakingMax英语口语达人

In other words, the same objective information which is " "I got eighth; I expected top three".

也就是说，同样的客观信息,“我是第八名，我目标前三。

哈佛公开课 - 幸福课课程节选

A business plan,in the words of the Small Business Administration in Washington, is a tool with three basic purposes.

VOA: special.2009.06.26

She was seventy-three years old. She leaves behind a written record of her life and legacy through the words of her poems.

VOA: special.2010.04.18

On it are words from the poem "The New Colossus" written by Emma Lazarus in eighteen eighty-three.

VOA: special.2009.06.29

The call is always given three times to prevent mistaking it for some similar sounding words.

VOA: special.2010.04.18

For the next three years, Helen learned more and more new words.

VOA: special.2009.11.08

"We will rebuild this economy stronger than before,and at its heart will be three powerful words: Made In America."

VOA: standard.2010.08.11