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play [role]
美式足球中常用 bare noun 形式表示担任某一位置。
He played lineman at college.
他大学时担任锋线队员。
（美式足球）锋线队员；线锋
先理解核心含义，再看它在真实句子里的用法。
（美式足球）锋线队员；线锋
one of the players on the line of scrimmage
He played lineman at college.
他大学时担任锋线队员。
安装和维修架空电缆(电力或电话)的人；线路工。
A person who installs and repairs overhead cables (either power or telephone); a linesman.
专门在争球线上进行攻防的球员。
A player who specializes in play at the line of scrimmage.
修理铁路轨道的人。
Someone who repairs railway tracks.
The lineman blocked his opponent and gave the quarterback more time to throw.
那名锋线队员挡住了对手，给了四分卫更多传球时间。
Both linemen stayed low and pushed forward together.
两名锋线队员都压低重心，一起向前推进。
A good lineman must be strong and able to react quickly.
一名优秀的锋线队员必须强壮，而且要能快速反应。
美式足球中常用 bare noun 形式表示担任某一位置。
He played lineman at college.
他大学时担任锋线队员。
指美式足球中的具体场上位置。
The position of lineman requires strong blocking skills.
锋线队员的位置需要很强的掩护技巧。
此处指测量员，常与 range pole（测杆）搭配。
She worked as a lineman on the survey team.
她曾在测量队担任司尺员。
Not this
There are three linemans on the football team.
Use this
There are three linemen on the football team.
lineman 的复数是不规则形式 linemen，不是 linemans。以 -man 结尾的名词变复数时通常把 -man 改为 -men，因此要用 linemen 与 three 搭配。
Not this
The lineman are working on the power lines.
Use this
The linemen are working on the power lines.
lineman 是单数名词，谓语应使用单数形式（The lineman is...）；若主语是复数，应使用复数形式 linemen，谓语用 are。这里要表达的是多名工人，所以改为 linemen 以保持主谓一致。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
进攻锋线球员
The offensive lineman blocked the defender to protect the quarterback.
这名进攻锋线球员阻挡防守队员，以保护四分卫。
防守锋线球员
A defensive lineman must be both quick and strong to pressure the passer.
防守锋线球员必须兼具速度与力量，才能向传球手施压。
电力线路工
A power lineman repairs high-voltage wires after the storm.
暴风雨过后，电力线路工负责修理高压电线。
电话线路工
The telephone lineman climbed the pole to fix the broken cable.
电话线路工爬上电线杆，修理损坏的电缆。
经验丰富的锋线球员
The veteran lineman helped the rookie adjust to the team's playbook.
这位经验丰富的锋线球员帮助新秀适应球队的战术手册。
我是县里的线务员。
The lineman climbed the utility pole to restore power.
线务员爬上电线杆恢复供电。
威奇托的线务员仍在线上。
A lineman must often work during storms to repair damaged cables.
线务员经常要在暴风雨中工作，修复损坏的电缆。
Use lineman naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住 line（线）＋ man（人）：在线路上工作的人就是线路工；美式足球里站在开球线(line of scrimmage)上的就是锋线队员。
语域：mixed 常见场景：美式橄榄球比赛、电力或通信线路检修、测量放样、道路养护 lineman 在不同场景下含义不同：体育语境通常指美式橄榄球锋线队员，行业语境多指线路工人、测量辅助人员或养路工人。正式程度随语境变化，体育解说和日常交谈中较随意，技术工作场合偏中性或正式。使用时建议先根据上下文判断具体工种。
注意：复数形式为 linemen。
Dictionary facts from ECDICT, WIKTIONARY.