Things fleeting time of youth, fleeting. The passage of time we are not able to recover. We can only watch. Youth waiting to leave footprints.

似水流年的青春，稍纵即逝。流逝的时间我们无法挽回。我们只能守候。守候青春留下的足迹。

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The women sing of the joys of smoking, comparing the fleeting smoke rings with the fleeting attentions of the men.

女工们则歌唱吸烟的快乐，以烟圈的飘忽不定来比喻男人的用情不专。

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He believes the world has a unique opportunity at the moment to get the issues on the table but he said, those opportunities are usually fleeting.

VOA: standard.2009.11.04

"The agency never stated that the (fleeting expletives) exception applied to fleeting images as well, and there was good reason to believe that it did not, " he wrote.

CNN: STORY HIGHLIGHTS

Beneath the big, galloping fun of American Slang lies a unifying theme about the fleeting nature of youth.

NPR: First Listen: The Gaslight Anthem, 'American Slang'

She had a fleeting image of Aron standing in her bathroom, wearing silly shorts.

NEWYORKER: Luda and Milena