This is caused by the fact that the parser uses backtracking to parse the code, i.e. they try many if not all possible combinations of outcomes until they figure out the right one.

这是由于解析器使用回溯来解析代码，例如，它们会尝试诸多结果的组合直到找到正确的那一 个。

youdao

It's just not physically possible to finish all this by the end of the week.

要在本周末完成这一切，这在客观上是办不到的。

《牛津词典》

The Internet, cell phones and airplanes are all technological advances that people use everyday and would not be possible without students of math and science inventing them.

互联网、手机和飞机都是人们日常使用的技术，如果没有数学和科学专业的学生发明它们，这些技术进步是不可能实现的。

youdao

"There was checking all around. But somehow, it is not possible to check all vehicles, so they might have slipped a vehicle inside and exploded it."

VOA: standard.2009.09.26

And that's not possible in all parts of the world, not everybody has that opportunity to interact with medical professionals that often.

而这不可能在世界各处都能实现,并不是每个人都经常有机会见到医生的

耶鲁公开课 - 生物医学工程探索课程节选

All heat couldn't get successfully converted into work That would be desirable, but it's not possible.

都变成功,把全部热量变成功是非常令人期待的，但是这是不可能的。

麻省理工公开课 - 热力学与动力学课程节选

Medicare will not pay for all possible uses of Provenge, a cell therapy meant to prime the immune system to fight tumors.

FORBES: Medicare To Pay For Dendreon Treatment

Picking the best eight from more than 30 hopefuls proved tricky: not all of the possible permutations added up to the sum of their parts.

ECONOMIST: Can voguish management theory help to win a venerable race?

As with all of the UN-assisted criminal tribunals, it is not possible to try all offenders at every level of responsibility.

UN: Secretary-General