1. Soon, a picture of Karachi's large and undocumented informal and formal organizations started to emerge. 很快，一个有关卡拉奇尚未正式的大的正规和不正规组织的图形开始出现。
2. The job losses have been worst in sectors such as construction and retailing that employ many undocumented Mexicans. 雇用许多无合法移民手续的墨西哥人的行业如建筑业和零售业，丧失的工作机会更多。
3. It would, I think, distort our country in ways that are far more damaging than the presence of undocumented workers right now. 那也会给我们国家行形象带来严重的歪曲，比目前工人们的无正式文件的问题还要严重。
英英解释
adj.
1. lacking necessary documents (as for e.g. permission to live or work in a country)
