疑難的英文：
difficult to solve
complicated
參考例句：
their adoration interrogates
他們的頌讚帶著疑難。
Now the snag in this sort of anecdote is of course that one cannot distinguish cause and effect.
當然,這一奇聞怪事的疑難之處在於無法確定因果關係。
What makes the anecdote a puzzle was that the consequence of it was not found.
當然，這一奇聞怪事的疑難之處在於無法確定因果關係。
Some elusive words have not explained or explained unreasonably in vernacular works in the Ming and Qing Dynasties.
明清白話作品中有一些疑難詞語，或至今無人作釋，或釋而未當。
difficult是什麼意思：
adj. 困難的；執拗的；不易相處的
The exercise is that difficult!
練習題那麼難！
You must admit the task to be difficult [ that the task is difficult ].
你應當承認這項任務是艱鉅的。
You must admit the task to be difficult [that the task is difficult].
你必須承認這項任務是困難的。
solve是什麼意思：
v. 解決；破解
Will you help me to solve this twister?
你能幫助我解決這個難題嗎？
I just solved the mystery.
我剛剛把那個謎底解開了。
It was a physical problem that had to be solved.
要解決的問題是個實際問題。
complicated是什麼意思：
adj. 結構複雜的
The sceptic knows that life is complicated.
懷疑論者卻深知人生是如此錯綜複雜、撲朔迷離。
Involved or intricate, as in structure; complicated.
複雜的.在結構中牽扯較多的或錯綜複雜的；複雜的
There is no need to complicate matters.
沒有必要使問題複雜化。
