Workers who install, maintain, and repair overhead electrical or telecom lines

安装、维护和检修电力或通信架空线路的工人

American football players who line up on the line of scrimmage

美式橄榄球中在争球线两侧对位的球员

Railway workers who patrol, maintain, and repair track and lines

巡检、维护并修理铁道线路的铁路工人