2. Instead, computers would dispatch intelligent agents, or software messengers, to explore Web sites by the thousands and logically sift out just what's relevant. 取而代之的是,计算机将派出智能代理或软件信使,对成千上万的网站进行搜索,然后逻辑地筛选出相关的内容。
3. We will sift every scrap of evidence. 我们将细查每一点证据。
4. We need to sift out the applications that have no chance of succeeding. 我们需要剔出那些成功无望的申请。
5. Police officers have continued to sift through the wreckage following yesterday's bomb attack. 警官们继续细查了昨天炸弹袭击后留下的残骸。