疑难问题

yí nán wèn tí

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释义

  1. 1. knotty problem
  2. 2. intractable difficulty

疑难问题 的构成词

问
wèn

to ask; to inquire

问题
wèn tí

question

难
nán

difficult (to...)

难
nàn

disaster

题
tí

topic

疑
yí

to doubt

疑难
yí nán

hard to understand