portamento [ˌpoʊrtə'mentoʊ]

例句:

• Yet Portamento is richer still when it changes tack.
  来自BBC
• Portamento is simplicity redux, to the point of composing songs that sound too alike, and too like the last album.
  来自BBC
• It's soft, occasionally breathy, sweet and smooth, with the odd portamento thrown in for good measure.
  来自BBC