難兄難弟 [ㄋㄢˋ ㄒㄩㄥ ㄋㄢˋ ㄉㄧˋ; nan4 xiong1 nan4 di4]
  brothers in hardship (idiom)
  fellow sufferers
  in the same boat
  難兄難弟 [ㄋㄢˊ ㄒㄩㄥ ㄋㄢˊ ㄉㄧˋ; nan2 xiong1 nan2 di4]
  lit. hard to differentiate between elder and younger brother (idiom)
  fig. one is just as bad as the other
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