To be completely in the dark; to be unaware of the ins and outs; not to know the slightest clue.
这个问题太复杂了，许多人都对它的解决办法不知端倪。
This problem is too complex, and many people are completely in the dark about its solution.
Era:
Ancient
Frequency:
Next Idiom
To be completely in the dark; to be unaware of the ins and outs; not to know the slightest clue.
Era:
Ancient
Frequency: