Other experts have said the Microraptor probably flew with its back wings a little under and in a direction like that of the front wings.

VOA: special.2010.03.16

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

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

VOA: special.2009.03.23

It's a kind of realism, of course. Nevertheless, there it is in front of us, and again I call you back to that quotation. What are we going to see when we look at the fiction? Do we see what's in front of us?

当然这也是一种现实主义，然而，这些就在我们眼前，我想再次将你们的注意力集中到那句引语上，当我们阅读这,部小说时，什么情景会呈现在你眼前呢，我们能看到什么吗？

耶鲁公开课 - 1945年后的美国小说课程节选

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

"Since we know that these kinds of threats can emerge at any moment, even if it turns out that the H1N1 is relatively mild on the front end, it could come back in a more virulent form during the actual flu season,"

VOA: standard.2009.05.01

And you can see this expanding rings of activity of stimulating, Cause a pattern of activities that move forward from the back of the brain to the front of the brain, in a very regular pattern which we call a visual field map.

眼睛在前面，指向这个红点，大家看到，刺激活动不断扩大的环路,引起一个活动的模式，从大脑的后不向前部移动，这一模式十分规律，我们可以称其为视觉分布图。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

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