Fair Isaac, a large fraud-detection firm based in Minneapolis, operates a system so fast that it can block dialled calls before they are even connected. The software, called Falcon, is widely used, since laws prevent many telecoms firms from terminating non-prepaid calls once they are connected. Wily criminals are increasingly operating black-market phoning businesses based in parks and on street corners. “You may see 30 people with cell phones on one corner and one guy is dialling all the numbers for them,” says Ted Crooks of Fair Isaac. The calls, often to expensive destinations in poor countries, sometimes last days, Mr Crooks says, because cheats use forwarding systems to serve many customers with a single call. Technology that can pinpoint handsets' locations, however, allows calls in “hot” areas renowned for such illicit operations to be blocked.
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The calls, often to expensive destinations in poor countries, sometimes last days, Mr Crooks says, because cheats use forwarding systems to serve many customers with a single call.
Crooks[font=Arial][font=宋体]说，这些电话通常打往话费昂贵的贫困国家，有时持续好几天，因为骗子们使用转移（[font=Arial]forwarding[font=宋体][font=Arial]）系统，用同一通电话为多名客户服务。
But sometimes tech and travel meet, and with Road Trip 2010, CNET reporter Daniel Terdiman has been sojourning in Washington the last few days looking for just that convergence.
但有时满足高科技和旅游，并与路之旅2010年，接受CNET记者丹尼尔特迪曼已在华盛顿旅居过去数天，只是寻找衔接。
Child psychiatrists have long known that sometimes O. C. D. in children can be like that, that it can come on fast, out of the blue, like a plague, and then last anywhere from days to months.
儿童精神科医生们早就知道，有时儿童的强迫症可以突然发病，像瘟疫一样，然后症状可以持续从几天到几个月或者更长。
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