当前我国粮食生产面临一些不容忽视的困难和问题。

Current food production faces some difficulties and problems that cannot be ignored.

youdao

必须清醒地看到，我们工作中还有不少困难和问题。

We must be clearly aware that there are still quite a few difficulties and problems in our work. The income of farmers and some urban residents has increased only slowly.

youdao

无论一个人在学校或工作中曾经如何成功，终有一天他会遭遇困难和问题。

Regardless of how much success one has had in school or at work, there are bound to be times when he or she will encounter difficulties and problems.

youdao

Well, what it is is easily enough explained despite the sort of difficulty and thorniness of the word.

虽然我们遇到过很多困难和挫折,但这个问题很容易解答。

耶鲁公开课 - 文学理论导论课程节选

Now, as I said last time, the subject of free will--or free will, determinism, causation and responsibility, this cluster of problems-- is an extremely difficult and complicated physical problem.

正如我上次所说的,自由意志这个主题 或者说自由意志,决定论,因果论,责任,这一堆问题,是极端困难和复杂的物理问题

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