quagmire          
noun [ C ] uk/ˈkwɒɡ.maɪər/ us/ˈkwæɡ.maɪr/
 沼泽地,泥潭
an area of soft, wet ground that you sink into if you try to walk on it
  At the end of the game, the pitch was a real quagmire. 在比赛最后阶段,场地变得一片泥泞。 
  困境,危险的境地
a difficult and dangerous situation
  Since the coup, the country has sunk deeper into a quagmire of violence and lawlessness. 自政变以来,该国越来越陷入了一种暴力肆虐、法律缺失的境地。