linesman
柯林斯词典
1. N-COUNT A linesman is an official who assists the referee or umpire in games such as football and tennis by indicating when the ball goes over the lines around the edge of the field or court. 边线裁判员
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linesman /ˈlaɪnzmən/ (linesmen)
剑桥词典
linesman noun [C] (SPORTS)
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
边线裁判员，巡边员
linesman noun [C] (POWER LINES)
(US lineman)a person whose job is to repair phone and electricity lines
电话线修理工；电线修理工 返回 linesman