Any given test case could trigger many internal faults that, through sheer bad luck, don't produce the wrong answer.

任何给定的测试用例都能触发很多内部错误，仅仅通过不坏的运气，才不会产生错误的答案。

youdao

Nothing happens by chance or by means of good or bad luck, illness, injury, love or even sheer stupidity — all occur to test the limits of your soul.

无一人或事源于偶然，幸运或者不幸。伤病，爱情，乃至无知，所有存在的不过是为了考验你心灵的极限。

youdao