So let's picture what this looks like here, and we'll start with four and we'll add in our last two.

让我们想象一下它的样子，我们先给出四个，然后加上另外两个。

麻省理工公开课 - 化学原理课程节选

We've probably had four major periods in American history of there's one other picture I wanted to put up.

在美国历史上,我们大约经历了四个时期,在我想贴的另一张图片上

耶鲁公开课 - 美国内战与重建课程节选

With T-Mobile USA--a subsidiary of Deutsche Telekom (nyse: DT - news - people )--also in the picture, the U.S. would still have four big carriers fighting for share as the cellular marketplace begins to reach saturation.

FORBES: Life With Sprextel

Samsung's 85-inch UHD TV, the world's largest commercialized UHD LED TV, boasts life-like picture quality in ultra HD resolution with over 8 million pixels, four times the resolution of Full HD displays.

ENGADGET: Samsung bringing 85-inch ultra high definition TV to CES HD

Johnson, who in the 1970s gave the museum nine pieces from his own collection, said that his favorite picture was Edward Hopper's stunning "Room in New York, " which the museum purchased in 1936, four years after Hopper painted it.

WSJ: Fifty Has Seldom Looked So Good Bared | The Naked Museum | Sheldon Museum of Art | By Willard Spiegelman