她的诗在风格上时尚朦胧，在主题上深奥难懂。

Her poems are modishly experimental in style and recondite in subject matter.

《柯林斯英汉双解大词典》

最深奥难懂的课非微积分莫属。

My most abstruse class was Advanced Calculus Mathematics.

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那倒不是因为这些原因深奥难懂，需要过人的智慧。

It was not that those causes were so obscure that it required exceptional intelligence to perceive them.

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