“神不知鬼不觉”,中文俗语,字面意思是“unknown to god or ghost”,形容事情做得很秘密,别人一点也不知道。可以翻译为“without anybody being aware of,not noticed by anyone”等。
例句:
他们设法神不知鬼不觉地离开了海岸。
They managed to get away from the coast undetected.
怎么会有人神不知、鬼不觉地潜入皇宫呢?
How could anyone break into the palace undetected?