1
a welder who + clause
复数形式为 welders；who 引导定语从句时，谓语动词用单数。
He is a welder who repairs metal gates.
他是一名修理金属大门的焊接工。
焊工；焊接工
先理解核心含义，再看它在真实句子里的用法。
焊工；焊接工
a person who joins pieces of metal by welding them together
He is a welder who repairs metal gates.
他是一名修理金属大门的焊接工。
焊接工,即将钢、铝或其他金属部件通过焊接连接起来的人。
One who welds, that is, unites pieces of steel, aluminum, or other metals by welding.
管理者；实际占有者；从农场主或中间人处租地的佃户。
A manager; an actual occupant; a land-tenant holding under the farmer or middleman.
通过焊接将金属件连接在一起的人
joins pieces of metal by welding them together
焊接机；焊机
A machine that welds.
The welder wore a protective mask while joining the steel beams.
焊接工在连接钢梁时戴着防护面罩。
My uncle has worked as a welder at the shipyard for ten years.
我叔叔在船厂当焊接工已经十年了。
The factory hired two experienced welders for the new bridge project.
工厂为新桥梁项目雇了两名有经验的焊接工。
复数形式为 welders；who 引导定语从句时，谓语动词用单数。
He is a welder who repairs metal gates.
他是一名修理金属大门的焊接工。
We need a welder with five years of experience.
我们需要一名有五年经验的焊工。
She has worked as a welder for ten years.
她做了十年的焊接工。
Not this
My father is welder.
Use this
My father is a welder.
welder 是可数名词，单数形式前需要冠词；这里表示“一名焊工”，要用 a welder。
Not this
Welder is a dangerous job.
Use this
Welding is a dangerous job.
welder 指“焊工（人）”，不指“焊接”这项工作或活动；表达职业或活动时要用动名词 welding。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
持证焊工
The shipyard only hires certified welders.
这家造船厂只雇用持证焊工。
熟练焊工
A skilled welder works quickly and safely.
熟练焊工工作既快又安全。
学徒焊工
He is an apprentice welder learning from an experienced mentor.
他是一名跟着有经验的师傅学习的学徒焊工。
MIG焊机
She bought a new MIG welder for her garage workshop.
她为车库工坊买了一台新的MIG焊机。
电弧焊机
The arc welder needs a steady power supply.
电弧焊机需要稳定的电源。
点焊机
A spot welder is often used in car body repair.
点焊机常用于汽车车身修理。
Use welder naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：焊工（welder）手持焊枪，让金属熔化后牢牢粘合，像用胶水粘东西一样。记住 welder 就是‘焊接的人’。
语域：neutral 常见场景：factory floor、job advertisements、construction site 作“焊工”解时，属于中性职业名词，通常用于招聘广告、工厂车间或建筑工地等实际工作场景；很少用于正式学术文章，也非俚语。
真正押韵：elder /ˈɛldɚ/。注意：smelter /ˈsmɛltɚ/ 虽拼写相近、元音相同，但结尾是 /t/，不是 /d/，所以不押韵；builder /ˈbɪldɚ/、holder /ˈhoʊldɚ/、wilder /ˈwaɪldɚ/ 都带 -lder，但元音分别是 /ɪ/、/oʊ/、/aɪ/，也不押韵。别只凭拼写判断读音。
Dictionary facts from ECDICT, WIKTIONARY.