sifting

基本解释

Sifting the mass of paper on a tight deadline was daunting for both historians.
在紧凑的日程中筛选大量的文件，足以吓到这两位历史学家。
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。
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。

Bobo Simbo stands thigh-high in a pool of orange water, sifting the mud for traces of gold dust.
We're started sifting through things and then we'll get rolling.
在我们开动之前,首先要筛选一下
耶鲁公开课 - 聆听音乐课程节选
Rescue workers are sifting through the wreckage in search of 18 missing people and have said that the death toll is likely to rise.

Analyzing and sifting through computer archives and email databases is a massive undertaking these days.
FORBES: Abtin Buergari's Modus Disrupts "Corrupt" eDiscovery Business

If you sift a powder such as flour or sand, you put it through a sieve in order to remove large pieces or lumps.
If you sift through something such as evidence, you examine it thoroughly.