brief span

But in the brief span of time it is hard to do .

但在短时间内很难做到。

Our life is a brief span measuring some seventy or eighty years in all .

人生短暂，总共不过七八十年。

It would be an incredible coincidence if Earth had been visited by aliens during the brief span of human history .

外星人曾在地球有过人类的这短暂时期造访过这里，那将是惊人的巧合。

But during a brief span between the wet and dry seasons , when the water level is just right , the many varieties of algae and moss bloom in a dazzling display of colours .

但在一间潮湿，短短旱季，当水位恰到好处，藻类和苔藓盛开在令人眼花缭乱的色彩显示许多品种。

Her spirit seemed hastening to live within a very brief span as much as many live during a protracted existence . We recall in special times when we have stood briefly , but magnificently , united ;

她的心灵似乎要匆匆地在短暂的片刻时间内生活得象别人在漫长的一生中一样。我们可以回想起一些特殊的时刻，我们短暂地但很出色地团结在一起。