首先,学前教育为再生产劳动力打下基础。
其次,学前教育为再生产科学文化知识奠基。
最后,学前教育具有重要的社会效益。
Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Mobile homes can be moved from place to place, but they are now usually designed for ( ) living at one location. (round, year)