the act of making something known that was secret, or a fact that is made known

a moment of revelation 真相大白的一刻

[ + that ] His wife divorced him after the revelation that he was having an affair. 他的婚外情暴露后，他的妻子和他离了婚。

Shocking revelations about their private life appeared in the papers. 有关他们私生活的惊人内幕见诸报端。

to be an extremely pleasant surprise

This book came as a complete revelation to me. 这本书使我茅塞顿开。