Today though our world is very different, and we still have many problems to solve.

尽管我们今天的世界已经有了很大的不同，我们依然有许多需要解决的问题。

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However, college students in our country still have many problems in mental health.

但是，我国的当代大学生在心理健康方面仍然存在很多问题。

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But it still have many problems which deserve research, especially in operation of the different distributed object.

但是在实际应用中还有许多问题需要解决，特别是不同分布式对象的互操作问题。

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Unfortunately many women still have acne problems even when they are 40 years old, with or without being on the pill.

CNN: Could stopping the pill be causing my acne?

Unfortunately, the new leaders still have to deal with all the same old problems: too few new drugs, too many old ones vanishing, and an environment where it is increasingly difficult to get new products to sell.

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