linesman
noun [ C ] uk/ˈlaɪnz.mən/ us/ˈlaɪnz.mən/ -men uk/-mən/ us
(SPORTS)
边线裁判员，巡边员
an official in some sports who is responsible for deciding when the ball has crossed the line that marks the edge of the playing area
(POWER LINES)
(US lineman)电话线修理工;电线修理工
a person whose job is to repair phone and electricity lines