• adj. 困难的；不随和的；执拗的

dis-, 不，非。facile, 简单的，好做的，词源同fact, efficient. 即不好做的，困难的。

difficult

difficult: [14] Difficult means literally ‘not easy’. It is a back-formation from difficulty [14], which was borrowed from Latin difficultās. This was a derivative of the adjective difficilis (source of French difficile), which was a compound formed from the prefix dis- ‘not’ and facilis ‘easy’ (whence English facile [15]).
=> facile

difficult (adj.)

c. 1400, apparently a back-formation from difficulty. French has difficile, Latin difficilis. Of persons, "hard to please," from 1580s.

1. He had a reputation for being bloody-minded and difficult.

他为人刻薄、难相处是出了名的。

来自柯林斯例句

2. I have a fair idea of how difficult things can be.

我大致了解情况会有多困难。

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3. It would be difficult to find two men who were more dissimilar.

很难找到彼此间差异更大的人了。

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4. There's no petrol, so it's very difficult to transport goods.

没有汽油，因此很难运输货物。

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5. Adults need to live their own lives and that's difficult with children.

大人需要过他们自己的生活，但有了孩子就很难做到了。

来自柯林斯例句