déjà vu /ˌdeɪʒɑː ˈvuː/
    the feeling that you have previously experienced something that is happening to you now
    似曾相识的感觉、既视感，来自法文。中文直译为已经看到过
    e.g.
    When I met her, I had a strange felling of déjà vu.
    我遇见她时有一种似曾相识的感觉。
    I entered the room and immediately felt a sense of déjà vu.