But,despite the excitement about the case, members of the alleged Russian spy ring did not seem to have accomplished anything.

VOA: standard.2010.07.09

So, we have a problem here if we're thinking about keeping things at the lowest energy, so there's a lot of ring strain in the system.

现在有个问题,我们考虑要把能量降到最低，所以环上有许多应力。

麻省理工公开课 - 化学原理课程节选

That's why in the earlier models of the atom, they're not horrible to sometimes think about just each n value as a little ring around.

这就是为什么在早期原子模型中，人们没有感觉到把每一个，n，都想象成,一个绕核的小圆圈有什么不妥。

麻省理工公开课 - 化学原理课程节选