ㄖㄨㄛˋㄧㄡˇㄙㄨㄛˇruòyǒusuǒshī

  1. 好像丟失一些什麼形容心神不定內心空虛 失神那兒若有所失」。

as if one had lost something (idiom)​, to look or feel unsettled or distracted, to feel empty