blue-col·lar /ˈbluˈkɑlɚ/
(a.)藍領階級的
blue-collar
adj 1: of or designating manual industrial work or workers [ant: white-collar]
2: of those who work for wages especially manual or industrial
laborers; "party of the propertyless proletariat"-
G.B.Shaw [syn: propertyless, wage-earning, working-class]