難關

难关
nánguān
  1. difficulty
  2. crisis

CEDICT

Entry Composition

1 難 nán
  1. difficult (to...)
  2. problem
  3. difficulty
  4. difficult
  5. not good
2 關 guān
  1. mountain pass
  2. to close; to shut; to turn off
  3. to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc)
  4. to concern; to involve