You're sort of trapped on that same flat sheet.

你被困在同一个平面上。

You go in between the fitted sheet and the flat sheet.

您介于床笠和床单之间。

You'll need a fitted sheet, a flat sheet, and pillowcases.

Crystal：你需要一张床笠、一张床单和枕套。

The flat sheet is especially useful if the blanket is a little rough on your skin.

如果毯子在您的皮肤上有点粗糙，则平板特别有用。

That tip will trace out some kind of flat sheet cutting through the origin of three dimensional space.

这个尖端会勾勒出某种平面 穿过三维空间的原点。

From a flat-sheeted robot, it turns into a pyramid and back into a flat sheet and into a space shuttle.

从一个平板机器人，它变成金字塔， 然后变回平板， 再变成航天飞机。

A " flat sheet" is a sheet that doesn't have elastic in it; it's a sheet that will move around easily.

“平板” 是一种没有弹性的床单；这是一张可以轻松移动的床单。

This flat sheet is the span of the two vectors, or more precisely, the set of all possible vectors whose tips sit on that flat sheet.

这个平面是这两个向量张成的空间 或者更准确地说 是顶端在这个平面上的所有可能向量的集合。

Some people put a fitted sheet and then, on top of that, they'll put a flat sheet, then, on top of that, they'll put a blanket.

有些人放一张床单，然后在上面放一张床单，然后在上面放一条毯子。

You can have them all in one long piece of paper that is rolled up into a circle, or you can buy them on a flat sheet that is folded up.

您可以将它们全部放在一张卷成一个圆圈的长纸中，或者您可以将它们放在折叠起来的平板上购买。

Let's see what that would look like in 2D. Our universe is like a big flat sheet, bent in just the right way, wormholes could connect two very, very distant spots with a short bridge that you could cross almost instantaneously.

让我们来看看在二维上看起来是怎么样的，我们的宇宙就像是一张大平面，假如掰得恰当，虫洞能架起一座短桥连接两个距离非常非常远的点，你能几乎瞬间穿过去。