There are white people in the front and black people in the back.

VOA: special.2009.03.23

How do they decide who went in front and who went in the back?

他们怎么决定谁站前面谁站后面

耶鲁公开课 - 古希腊历史简介课程节选

In some cases, the back of the head could be more expressive than the front, in which case this is your opportunity and I wish you luck.

有些时候,后脑勺确实比正脸更有表现力,这才是你们的机会,祝你们好运

耶鲁公开课 - 基础物理课程节选

They pretty much come in the front door. But the British pop in the window and nip out the back door,".

VOA: standard.2009.07.02

The building of buildings in the shape of what the Greeks called a megaron, a rectangular center, which has a hearth in it, a front porch, and a back porch which will be the style in which Greek temples are built in the historical period.

建筑物呈现出希腊人所称的,中央大厅的形状,一个矩形的大厅,有一个壁炉在中间,一个前走廊,和一个后走廊,具有古希腊神庙的风格,修建于有史料记载的时期

耶鲁公开课 - 古希腊历史简介课程节选

You can see this region here is going to develop into one of the upper limbs, the arms here and the back is different from the front, the spinal cord is developing in the back, whereas, the structures that become our intestinal tract is developing on the other surface.

你能看到这个区域,将会发育成为上肢,这里是手臂,而且身体前后也有不同,脊椎正在后背发育,另外,会成为我们肠管的结构,也在另一个表面发育着

耶鲁公开课 - 生物医学工程探索课程节选