gangmaster
noun /ˈɡæŋmɑːstə(r)/
/ˈɡæŋmæstər/
(British English)- a person or company that organizes groups of workers on a temporary basis to do manual work (= physical work using their hands), especially work on farms
（大批雇用临时工人从事体力劳动的）雇主，农场雇主