1
be a docker
be 后接职业名词时，单数通常带不定冠词 a/an。
My grandfather was a docker in Shanghai.
我祖父是上海的码头工人。
码头工人
先理解核心含义，再看它在真实句子里的用法。
码头工人
a person who loads and unloads ships at a port
My grandfather was a docker in Shanghai.
我祖父是上海的码头工人。
断尾者
One who performs docking, as of tails.
码头工人。
Synonym of dockworker.
在港口装卸船只的工人
a laborer who loads and unloads vessels in a port
进行“嵌合”性行为的人(一方阴茎顶端插入另一方包皮中)。
One who engages in the sexual practice of docking (where the tip of one participant's penis is inserted into the foreskin of the other participant).
A docker was carrying bags of coffee from the ship to the dock.
一名码头工人正把一袋袋咖啡从船上搬到码头。
The dockers stopped for a break after unloading the entire container.
码头工人们卸完整个集装箱后停下来休息。
As a docker, he learned to tie the ropes that hold ships to the quay.
作为一名码头工人，他学会了系住船只在码头上的缆绳。
be 后接职业名词时，单数通常带不定冠词 a/an。
My grandfather was a docker in Shanghai.
我祖父是上海的码头工人。
as 后接职位名词，表示以某种身份工作。
He worked as a docker for five years.
他当了五年码头工人。
docker 的职责是装卸船只，load 与 unload 可换用。
Dockers unload the cargo ship.
码头工人卸下货船上的货物。
Not this
My uncle is a dock at the harbor.
Use this
My uncle is a docker at the harbor.
dock 作名词指“码头、船坞”，是地点而不是人；表示“码头工人”要用 docker，即在 dock 后加表人的后缀 -er。
Not this
The docker unload the cargo from the ship.
Use this
The docker unloads the cargo from the ship.
主语 docker 是第三人称单数，一般现在时的谓语动词需要加 -s 变成 unloads。汉语动词没有词形变化，因此学习者容易漏掉这个 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
码头工人罢工
The docker strike halted all cargo movement at the port.
码头工人罢工使港口的货物运输全部停止。
码头工人工会
The docker union negotiated better safety conditions for its members.
码头工人工会为其成员争取到了更好的安全条件。
临时码头工人
Many casual dockers waited for work at the gates every morning.
许多临时码头工人每天早上在大门口等活。
码头工人用的钩子
He gripped his docker's hook as he moved between the crates.
他拿着自己的码头钩子在货箱之间移动。
码头工人纠察线
The docker picket line blocked the main entrance to the terminal.
码头工人纠察线封锁了码头的主要入口。
Use docker naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 dock（码头）加上表人的 -er，就是码头工人。
语域：neutral 常见场景：港口、航运业、新闻报道 该词指在码头装卸货物的工人，属于普通中性用词，多用于港口或航运相关语境；没有明显的正式或非正式色彩。
These words rhyme with docker /ˈdɑkɚ/ in General American because their stressed vowel and following sounds match /ɑkɚ/: locker, rocker, knocker, blocker, and soccer (though soccer is spelled with -ccer). Beware lookalikes that sound different: doctor /ˈdɑktɚ/ adds a /t/, and poker /ˈpoʊkɚ/ uses a different vowel.
Dictionary facts from ECDICT, WIKTIONARY.