英国移民署曾尝试量化签证骗局，发现在私人继续教育上钻空行为尤其多(语言学校其次)。

An attempt by the UK Borders Agency (UKBA) to quantify visa fraud found much flouting of the rules at private further-education colleges in particular (and, to a lesser extent, at language schools).

youdao

2006年，在对4700户家庭调研后，南非移民计划署发现40%的津巴布韦家庭由此来源获得一些钱财。

A 2006 study of 4,700 households by the Southern African Migration Project found that 40% of Zimbabwean households received some money from this source.

youdao