Sticking small needles into the hammer's felt creates mellowing.在琴槌的毛毡上粘上小针以使音色圆润....

mellowing的音标：mellowing的英式发音音标为：['meləʊrɪŋ]mellowing的美式发音音标为：['meloʊrɪŋ]...

n.软化，醇化v.（使）成熟( mellow的现在分词 )，使色彩更加柔和，使酒更加醇香...