杀手级应用 shā shǒu jí yìng yòng

DEFINITIONS

  1. killer application
  2. killer app

CHARACTERS

杀 shā kill, slaughter, murder; hurt
手 shǒu hand
级 jí level, rank, class; grade
应 yìng should, ought to, must
用 yòng use, employ, apply, operate; use