They had about two hundred college students play a version of the game known as the Prisoner's Dilemma.

VOA: special.2009.10.21

There are only two hundred and fifty students in each full time class.

全日制的学生仅有250人。

康奈尔的教授不一样 - SpeakingMax英语口语达人

Every state is different. The association says Vermont has one nurse for every two hundred seventy-five students.

VOA: special.2009.08.13