“three rural left-behind groups”的概念、定义、翻译、参考文献-科学参考

单词	three rural left-behind groups
释义	three rural left-behind groups Encyclopedia 法学农村释 three rural left-behind groups农村三留守群体因家庭主要劳动力进城务工经商或从事其他生产经营活动而留守在农村生活的三类人群，即留守老人，留守妇女，留守儿童。为中国社会转型时期出现的特有社会现象。
随便看	undersocialized undersonic frequency underspeed understandability understandable understanding Understanding and Interpretation:A Study of Audience and Museum Learning Understanding Media: The Extensions of Man Understanding Poetry understanding psychology understanding's legislation for nature understanding sociology Understanding Your Visitors:The Operation and Visitor Behavior Study of Shisanhang Museum of Archaeology understressing underswing Under the Ancestors' Shadow Under the Banner of Marxism Under the Fence Under the Hawthorn Tree Under the Lion Rock Under the Roof of Shanghai Under the Tongue Under the Traffic Light Under the Yoke underthrust

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。