marks·man /ˈmɑrksmən/
  射手,狙擊兵,神射手
  Marks·man n.; pl. Marksmen
  1. One skillful to hit a mark with a missile; one who shoots well. especially with a pistol or rifle.
  2. Law One who makes his mark, instead of writing his name, in signing documents.
  ◄ ►
  marksman
       n : someone skilled in shooting [syn: sharpshooter, crack
           shot]