Objective To know preschooler s constitution and to study methods of making normal values of preschooler s physical exertion using linear regression model.是什么意思_Objective To know preschooler s constitution and to study methods of making normal values of preschooler s physical exertion using linear regression model.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句