Some eye care professionals say all that screen time has led to an increase in what they call computer vision syndrome.

VOA: special.2011.08.01

Pax Romana This led to what we famously call the Pax Romana, "the Roman Peace," because you had the end of long, hundreds of years of civil wars and other wars, at least within Rome itself.

这导致了著名的，即“罗马和平“，因为长达几百年的，内战及大小战争终于结束了，至少在罗马本土结束了。

耶鲁公开课 - 新约课程节选

But I suspect that it was primarily Milton's intense interest in his college years in his own virginity that led our young poet's classmates at Christ's College, Cambridge to call him The Lady of Christ's.

但我怀疑主要是,弥尔顿在大学期间自己对处女情节的强烈兴趣,是那个导致了我们年轻诗人，在剑桥基督学院的同学叫他基督学院淑女。

耶鲁公开课 - 弥尔顿课程节选

But now researchers led by Doctor Jonathan Winickoff at MassGeneral Hospital for Children in Boston are warning about what they call "third-hand smoke."

VOA: special.2009.01.07

Massive fraud in the August 20 election led officials to call for a runoff.

VOA: standard.2009.10.24

Mr.Hariri's inability to form a unified government led him to call it quits.

VOA: standard.2009.09.11

Their campaign has led some scientists to give up GM research and others to call for the British government to carry out trials at secure or secret sites.

VOA: standard.2009.10.21