疑难

参考释义

疑难[yínàn]

• -difficult;knotty;puzzle:

  aknottyproblem;疑难问题

  difficultandcomplicatedcases(ofillness);hard-treatcase疑难病症

• 短语
  疑难工程problemjob
  疑难解答专家solutionist
  疑难榴石griphite
  疑难学名nomendubium