鬼知道的英文：
Heaven knows!
n. 天堂；上帝；天；极乐
It was the will of Heaven.
这是天意。
the seventh heaven
极乐
The plan was to have an audience of the son of Heaven.
计划里是有觐见天子的环节的。
Marriages are made in heaven
姻缘天注定
Heavens here is plural.
这里的天这个名词用的是复数形式。
v. 知道，了解，懂得；认识，熟悉；认出；体验；见到过，听到过
Learn not and know not
不学无术
Know/not know what is most important and act accordingly
能[不能]按轻重缓急行事
Do you know that lady?
你认识那位夫人吗？
Do you know the Hallelujah Chorus?
你知道哈利路亚合唱曲吗？
Few know and few care.
很少有人知道，也很少有人关心。