然而，即使对于本原群，其次轨道的决定也是一个非常困难的问题，它依赖与人们对抽象群本身结构的了解和一些组合方法的应用。

However, such a problem is very difficult in general, even for primitive groups and it depends heavily on the understanding of abstract groups and the application of combinatorial tools as well.

youdao

如果你做了一个很糟糕的经济决定，记下来，再重新步入正确的轨道。

If you make a bad financial decision, make a note of it and get yourself back on track.

youdao

把现有的生活暂时抛开，跳出目前的职业轨道，我当时对这样的想法感到崩溃，该如何决定我考虑得死去活来。

I was so freaked out by the idea of putting my life in storage and jumping off the known career path that I pondered the decision to death.

youdao