bumbler

英['bʌmbəlɚ] 美['bʌmbəlɚ]
  • n.犯错者;熊蜂;嗡嗡叫者
  • blunder n.大错v.失策;绊倒;弄糟
  • upon prep.在...上;紧接着;逼近
Noun:
  1. someone who makes mistakes because of incompetence