glissando
/glɪˈsændəu; ɡlɪ`sɑndo/ n
(pl -di / -di:;-di/ or ~s) (music 音) (in playing an instrument or singing) effect of sliding quickly up or down a scale, without separating the notes （演奏或演唱中）滑奏, 滑唱
a series of glittering glissandi on the piano 钢琴演奏中一系列明快的滑奏.