When the regex engine matches an atomic group, it will discard backtracting positions that came with all tokens inside it.

当正则引擎针对最小组团进行匹配时，它会跳过组团内标记的回溯位置。

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If progress in using atomic power to drive machines is fast enough, it is possible that oil-driven engines may give place to the new kind of engine.

如果利用原子能来开动机器方面的工作进展迅速，那么以油为动力的发电机可能让位于新型发动机。

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At this point, the atomic group will kick in. The engine will discard all backtracking positions.

此时，最小组团就发挥作用了：正则引擎会放弃所有回溯位置。

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