America's diffidence for a while cast a dark shadow over the event.

美国畏缩不前了好一阵，令展会蒙上阴影。

youdao

That dark story of the past fades little by little every day, and there may come a time in which the shadow my lady's wickedness has cast upon the young man's life will utterly vanish away.

黑暗的往事会逐渐退色，说不定时过境迁，夫人的缺德给这年轻丈夫的生活所投下的阴影，会完全消失无遗的。

youdao

The French referendum cast a dark shadow over the Brussels summit.

ECONOMIST: The European Union

But the Jan. 17 attack on the Bolshoi Ballet's artistic director, Sergei Filin, who had sulphuric acid thrown in his face and eyes outside his home, has cast a dark shadow on that ideal.

WSJ: Protecting Ballet's Global Reach

It has also scuttled chunks of the intelligence edifice that cast a long, dark shadow over its smaller neighbour.

ECONOMIST: Lebanon and its media