Well,experts say the expression appears to have been first used in the United States more than one hundred years ago.

VOA: special.2010.01.17

In the very first sentence of the essay, you read the expression "the struggle for science" - an interesting formulation, "the struggle for science."

文章的第一句中有一个表达，为了科学而斗争“,有趣表达“

耶鲁公开课 - 文学理论导论课程节选

In Machiavelli, we have what we have come to call "modernity," given its first and most powerful expression.

因为马奇亚维利,我们才有，“现代“这个词汇“,因为它从此有了最初与最有力的表述。

耶鲁公开课 - 政治哲学导论课程节选

Charles Haynes is a senior scholar at the First Amendment Center, a group that studies free expression issues.

VOA: special.2009.12.24

So the expression I wanna draw first of all is the best response of Player I as a function of S2 and we agreed that that was given by 1 plus 1/4 now, 1 plus 1/4 S2.

首先我们想要绘制的表达式是,参与人I的最佳对策是S2的函数,我们都知道它等于1+S2/4

耶鲁公开课 - 博弈论课程节选

The expression was first used in the southern part of the United States to describe the use of force to win an election.

VOA: special.2009.02.15

A writer for the magazine "American Speech" said he first saw the expression used in nineteen seventy-one.

VOA: special.2010.05.16

Those words are part of the First Amendment, which guarantees freedom of expression and other rights.

VOA: special.2009.12.24

Language expert Charles Earle Funk said the expression was first used almost seven hundred years ago.

VOA: special.2010.01.31

The expression was first used in America at the beginning of the twentieth century.

VOA: special.2009.11.15