We choose which direction we want to aim for, you know, which point of the sphere we want to aim at.

需要把目标定在一个方向上，需要把目标定在球上的某个点。

youdao

A two-dimensional model of such a universe would look like a sphere. It's impossible to have parallel geodesics (straight lines on a curved surface) — the two lines will cross at some point.

这样的2维宇宙模型就像是球体，不可能出现平行的测地线(测地线是曲面上的直线)——两直线必然在某点相交。

youdao

The other way to think about it is at this point, 1 well, rho is equal to one because you are on the sphere.

另外一种想法是从这个点出发，因为在球面上，所以ρ是。

youdao

This was a strange shift from political blogging, a sphere in which point-counterpoint is simply taken for granted.

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It says that if in this space any closed-curve object, such as a rubber band, can be shrunk to a point, then the space is topologically equivalent to a sphere.

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Imagine that all of a sudden everything becomes rosy and we can have confidence and trust in what would be provided to Iran from this point onward not subject to anything that might happen in the political sphere.

BBC