blue shiftWiktionary 原文/ˈbluː.ʃɪft/构词拆解blue词干+shift词干词源说明From blue + shift, referring to the Democratic Party's political color, in the case of the first sense.释义名词noun1US politicsAn observed phenomenon in which an apparent early Republican lead after the polls close on the night of an election is diminished by the counting of mail-in ballots