By an astonishing stroke of luck, we know that this detailed naturalism was only one of the styles that Ice Age artists had at their disposal.
Remember that not getting what you want is sometimes a wonderful stroke of luck.
Though killing Colonel Qaddafi would be regarded as a wonderful stroke of luck, the aims of the new targeting policy are twofold.
But he might not have got far had it not been for a stroke of luck.
This idiom satirizes those who just wait for a stroke of luck, rather than making efforts to obtain what they need.
By a stroke of luck, Ayn (it rhymes with"mine") encountered legendary director Cecil B. DeMille on her secondday in town.
Never think my success is merely a stroke of luck.
"Now this wonderful stroke of luck has come out of the blue, you'll be needing extra hands. "
But Napoleon, by a stroke of luck, was able to build two new bridges.