单词	content of special time
释义	content of special time 时代内涵
随便看	labour saving equipment labour-saving equipment labo u r-saving equipment labour-saving household appliances labour saving industry labour-saving industry labour saving invention labour-saving invention labour saving investment labour-saving investment labo u r-saving investment labour-saving machinery labour saving machinery industry labour-saving method labour saving ratio labour-saving ratio labo u r-saving ratio labour saving technical change labour saving technical progress labour-saving technical progress labour schedule labour scheduling labour school labour science labour security