There are so many reasons for this winnowing out, but one important contributor is a leadership ambition gap.

这个淘汰过的背后有很多原因，但造高级职位中女性数量稀少的一个重要原因是缺乏想当领导的进取心。

And much of this winnowing takes place during sleep, as two papers in this week's Nature Neuroscience observe.

本周《自然神经科学》杂志的两篇文章指出，选择性忘的过主要发生在睡眠中。

The fowls of heaven, tamed by the cruel season, crowd around the winnowing store, and claim the little boon which Providence assigns them.

天寒地冻，繁重活计下煎熬；群鸟麇集，黑压压蜂拥飞来，粮仓屋前，饥饿难耐地寻找， 麸皮翻飞，悲悯众生的回。

I will winnow them with a winnowing fork at the city gates of the land. I will bring bereavement and destruction on my people, for they have not changed their ways.

我在境内各城门口（或作" 我在这地边界的关口" ）用簸箕簸了我的百姓，使他们丧掉儿女。我毁灭他们，他们仍不转离所行的道。