Their advance could shed light on why the foam on a pint of lager quickly disappears , but the froth on a pint of guinness sticks around 他们的研究结论可能可以解释,为何一大杯黑啤酒的泡沫会迅速消失,但一杯guinness啤酒的泡沫会留著的原因。
However , ballads were what people improvised out of daily life , and due to lack of means to record and preserve them in ancient times , they quickly disappeared without leaving much of a trace 不过歌谣本是人们在生活中随兴而发的东西,上古时代也没有保存和记载它们的手段,因之也就很快湮灭,不留痕迹。
His look wandered over the vast plain like that of some genius of the night ; he passed his hand over his brow , got into the carriage , the door was closed on him , and the vehicle quickly disappeared down the other side of the hill in a whirlwind of noise and dust 他的目光象一个夜间的精灵一样在那广大的平原上留连着,他把手放在额头上走进马车,关上车门,车子便在一阵尘沙和响声中消失在山的那一边了。