undocumented

adj.

无正式文件的，无事实证明的；

1. 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。
2. Early years are undocumented but many feel he spent some years in Egypt and was possibly educated by the Essenes.
   无事实证明早期的生活，但很多人认为他花了若干年在埃及里，很可能受到了艾赛尼派的教育。

Health care use among undocumented Latino immigrants.
Self-selection among undocumented immigrants from Mexico
Undocumented Mexico—U.S. Migration and the Returns to Households in Rural Mexico
An analysis of public opinion toward undocumented immigration
Estimates of the Size and Characteristics of the Undocumented Population
Learning to Be Illegal: Undocumented Youth and Shifting Legal Contexts in the Transition to Adulthood
Penalized Maximal t Test for Detecting Undocumented Mean Change in Climate Data Series
Comments on ``Detection of Undocumented Changepoints: A Revision of the Two-Phase Regression Model''
Understanding the Social-Emotional Well Being of Undocumented Latino Children in the United States
China's "tidal wave"of migrant labor: what can we learn from Mexican undocumented migration to the United States?