The I.M.F.predicts developing economies will continue to grow for the year, but only by about one and one-half percent.

VOA: special.2009.04.24

The only force acting on this guy is this little f.

这个物体只受一个力的作用,也就是 f

耶鲁公开课 - 基础物理课程节选

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

耶鲁公开课 - 基础物理课程节选

Critics carp that the plane is unneeded in a post-Cold War world and that we should, instead, only upgrade the F-15 and F-16 and wait for the proposed Joint Strike Fighter aircraft that's coming several years hence.

FORBES: Fact And Comment

Critics carp that the plane is unneeded in a post-Cold War world and that we should, instead, only upgrade the F-15 and F-16 and wait for the proposed Joint Strike Fighter (JSF) aircraft that's coming several years hence.

FORBES: Fact and Comment

The island can be reached from Manhattan on the F train, only three stops after Rockefeller Center, but according to a 2009 report on the island's infrastructure conducted by the department of urban affairs and planning at Hunter College, the subway was even then running at full capacity.

WSJ: Louis Kahn | Four Freedoms Park | Louis Kahn's Four Decades to Freedom | By Julie V. Iovine