究竟

Not qualified or limited in any way; total. Used to emphasize that something is completely true or certain.

Accidental, occasional, or by chance. It describes events that happen without a clear plan or pattern, as opposed to things that are inevitable.

实际上，用于强调情况的真实事实，特别是当这些事实与人们所相信或预期的不同时。

After all, or in the final analysis. It is used to emphasize a fundamental fact that should be considered despite other circumstances.

尽管下雨，他还是出去了。(Although it rained, he still went out.)

连词。用在前半句，表示承认甲事为事实，但乙事并不因为甲事而不成立。

通过推理和证据来证明或证实一个观点；论证过程。

作为判断、处理事物的根据。例如：'法律依据'或'事实依据'。

原因和结果的关系；一切行为都有其后果的原理。

比较；与……相比。