我们有确凿无疑的证据证明到底发生了什么。

We have incontrovertible evidence of what took place.

《柯林斯英汉双解大词典》

这种事不会发生，因为“恒星年（由365又1/4天所组成）是十一进制的”这一事实是确凿无疑的。

With its decidedly undecimal sidereal year of 365-and-a-quarter days, that is just not going to happen.

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据确凿无疑的出土的及传世的文物，中国船舶的舵是由桨演变而来的。

Rudders used in China's vessels did evolute from oars according to the undoubted excavated cultural relics and the relics handed down from ancient times.

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