tail off

phr

• ① 渐渐变小[变少、不分明、变得零乱];(话等)渐渐消失而终止
  • The storm tailed off in the evening.暴风雨在傍晚时分渐渐停息了。
  • Her voice tailed off into a whisper.她的语声逐渐变小而成为耳语。