verb, adverb · to look at someone or something secretly, especially through a small opening or from a hidden vantage point

他躲在门外，透过门缝偷窥屋里的动静。

verb · to engage in voyeurism or the intrusive observation of others' private lives for gratification or curiosity

这种偷窥他人隐私的行为不仅不道德，甚至可能违法。