“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	transport layer transport layer protocol transport layer security transport layer security, TLS transport machinery transport management transport market transport mean free path transport mobility transport mode transport need transport net transport network transport number transport of laboratory animals transport of pollutants transport of special goods on railway transporton transport-oriented transport packages testing machine transport parameter in combustion transport phenomena transport phenomena in metallurgy transport phenomenon Transport Planning and Research Institute，Ministry of Transport，China

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