好滴，目前这里，在有定义的区域里，减掉原点，即移去原点，就不是单连通的。

OK, so for this guy, domain of definition, which is plane minus the origin with the origin removed is not simply connected.

youdao

举个例子，取一个圆心为原点的圆盘，重心应该在原点。

For example, take a disk center at the origin, well, the center of mass should be at the origin.

youdao

清单 4 所示代码实现不是将现有对象以中心为原点进行旋转，而是以其左上角为原点进行旋转。

The code in Listing 4 didn't actually rotate the object in place around its center, but around its upper-left corner.

youdao

Now, at the left of the origin, it turns around and starts coming to the origin and going to the right.

现在,到了原点的左边,它又转向,开始向原点运动,并到了原点右边

耶鲁公开课 - 基础物理课程节选

The furthest point that I recorded was 28% oil-- that puts them there-- so if they--if you wanted to, where would it be?

这图上离原点最远的点包含28%的石油-,这已经到了图上那里了-,因此如果他们。。。如果你们想的话，那一点会在哪儿？

耶鲁公开课 - 金融市场课程节选

when it does this, it's crossed the origin and is going to the left of the origin.

当它这样运动的时候,就经过了原点,要运动到原点左边

耶鲁公开课 - 基础物理课程节选