The F. D. A. announced in 2007 that it was aware of that problem, but it has taken no action.

食品和药物管理局在2007年宣布它认识到了那个问题，但它没有采取行动。

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A Norwegian biologist, F. O. Guldberg, decided that this problem of circular movement was worth investigating.

一位挪威的生物学家哥尔柏格认为绕圈运动的问题确实值得调查研究。

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A Norwegian biologist, F. O. Guldberg, decided that this problem of circular movement was worth investigating. He collected many true stories on the subject.

一位挪威生物学家古尔·伯格认为这种转圈运动的问题值得研究，他搜集了许多有关这个问题的真实故事。

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So yes, f is a float, but that solution is too late; we need to fix the problem sooner.

是的，f是一个浮点数，但是那个解决方案太迟了;,我们应该在次之前把问题解决。

哈佛公开课 - 计算机科学课程节选

Your problem is to only look at the forces of contact on you, and that is just this f.

你只需要注意那些直接作用在这个物体上的力,那就只有 f 了

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So we've seen a lot of this, for instance, in office hours and maybe you too have done or are currently doing this, but there's a problem with writing a statement, like print F, followed by, get int, alone.

我们看过很多这个，例如，在办公时间,可能你们做完了或还在做这个，但是写语句的时候有个问题，就像printf，紧跟着的是GetInt，单独的。

哈佛公开课 - 计算机科学课程节选

Last year, downtime posed a problem for 18%f respondents, with losses typically ranging from hundreds of thousands of dollars to tens of millions.

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He will be succeeded in the F-35 job by Lorraine Martin, a similarly cerebral problem solver who has served as F-35 deputy program manager and previously headed other Lockheed aircraft efforts.

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The problem is that, as F Scott Fitzgerald might have said, the top one per cent are different from you and me.

BBC: Budget 2012: A big debate about small numbers