In the second section of the report, many concrete problems are mentioned, and they must be solved at once.
报告的第二部分提到很多具体的问题，需要马上解决。
We've completed half of the tour, and everything has been wonderful with the rock clubs and fans. There are always some problems, but they must be solved.
我们已经完成了一半的巡演旅程，一路走来，所有的摇滚俱乐部和粉丝们都超级棒。
I believe strongly that the problems of the 21st century cannot be solved by any one nation acting in isolation. They must be solved by all of us coming together.
我深信，21世纪的诸多问题不可能由任何一个国家单枪匹马地解决，我们只有齐心合力才能解决这些问题。
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