1·We dug our pans into black sand and gravel and began swirling and sifting until only a large tablespoon's worth of material was left.
我们在采金锅里装进黑色的沙土和砾石，开始不断的摇动和筛选，最后只剩下一汤匙那么多的东西。
2·Ephemeral info-nuggets are the Web's new currency, and sifting through them for useful information is a challenge for search engines.
短暂的信息金砖是网络的新货币。 通过他们筛选有用信息是对搜索引擎的一个挑战。
3·To others, dreams denote night-time learning or problem-solving, even automatic sifting of the mind's detritus, the skimming off of useless information to be dumped like so much mental junk.
其他人认为梦表示夜间学习或解决问题的过程，甚至是思想碎片的自动筛选过程，像清除思想垃圾一样清除无效信息。
4·Sophisticated sifting software is used to send the data to earth-bound scientists, who scour the results.
复杂精致的筛选软件被用于给地球上的科学家发送数据，他们负责弄清楚结果。
5·It's not about search; it's about sifting, and that's what e-discovery software enables.
它不是搜索，它是筛选，这就是电子证据发现软件所能够做的。