The number of tourists starts to tail off in October.游客在十月份开始逐渐减少.The drug's effect does not tail off after it has been used repeatedly.反复使用本药，药效也不会减弱。At some date in the 1990s British oil production will probably t...

变得越来越少[小]，不了了之...

tail off的音标：tail off的英式发音音标为：[teil ɔf]tail off的美式发音音标为：[tel ɔf]...