The launch took place without a problem on March twenty-third,nineteen sixty-five.

VOA: special.2009.06.24

I want to mention that 5 you're going to get problem-set five is posted today, and I'll write which ones you can already do so far, because you don't have class on Monday.

我要指出的是,今天会贴出来习题集，我会给出你们现在可以做的题目，因为周一没有课。

麻省理工公开课 - 化学原理课程节选

He said that although Burma exports rice, food scarcity is an acute problem in several regions, and nearly five million people are in need of food aid.

VOA: standard.2009.10.22

The real US deficit problem lies five or more years in the future, when expanding entitlement programs like Social Security and Medicare and flat taxes will create a widening gap between Federal revenues and Federal spending.

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Facilitators boiled down the comments into five problem statements for each of the four categories.

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If we solve those problems, we'll solve the biggest problem facing the next five generations.

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