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greased + noun
greased 作定语，放在名词前，表示该名词已被油脂处理过。
A greased bearing reduces friction in the engine.
涂了润滑油的轴承能减少发动机内的摩擦。
涂了油脂的；抹了润滑油的
先理解核心含义，再看它在真实句子里的用法。
涂了油脂的；抹了润滑油的
smeared with oil or grease to reduce friction
A greased bearing reduces friction in the engine.
涂了润滑油的轴承能减少发动机内的摩擦。
涂抹油脂以减少摩擦
smeared with oil or grease to reduce friction
Make sure the baking pan is greased so the cake doesn't stick.
确保烤盘加过润滑脂，这样蛋糕就不会粘住。
The mechanic checked if the greased bearings were still smooth.
机械师检查了加过润滑脂的轴承是否仍然顺滑。
He wiped the greased chain on his bicycle with a rag.
他用抹布擦了擦自行车上加过润滑脂的链条。
greased 作定语，放在名词前，表示该名词已被油脂处理过。
A greased bearing reduces friction in the engine.
涂了润滑油的轴承能减少发动机内的摩擦。
be greased 是系表结构，表示“处于涂油状态”。
The chain is greased to keep it running quietly.
链条已涂上润滑油，以保持安静运转。
get greased 与 be greased 相近，但更强调从“未上油”到“上好油”的变化。
The moving parts get greased once a week.
活动部件每周上一次润滑油。
keep sth greased 中 greased 作宾语补足语，表示使宾语持续处于涂油状态。
Keep the bearings greased so they do not wear out.
让轴承保持涂油状态，以免磨损。
Not this
The chain is greasy, so it runs smoothly.
Use this
The chain is greased, so it runs smoothly.
greasy 意为‘油腻的、多油的’，常含贬义或指表面沾满油污；而 greased 是形容词，表示‘涂了油脂以减小摩擦的’。要表达‘上了润滑油’应用 greased。
Not this
The pan greased before the cake was poured in.
Use this
The pan was greased before the cake was poured in.
greased 是形容词或过去分词，作表语时前面需要系动词 be。中文常说‘锅涂了油’，但英语中不能说 The pan greased，必须用 The pan was greased。
Not this
The bearings need to be grease before use.
Use this
The bearings need to be greased before use.
grease 是名词或动词原形，不能放在 be 后作表语描述状态；这里需要表状态的过去分词/形容词 greased 表示‘被涂了油脂的’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
涂了润滑脂的车轴
The greased axle rotated smoothly inside the hub.
涂了润滑脂的车轴在轮毂内平稳转动。
涂了润滑脂的轴承
A greased bearing reduces friction and wear.
涂了润滑脂的轴承可以减少摩擦和磨损。
涂了润滑油的链条
The greased chain moved silently over the sprocket.
涂了润滑油的链条在链轮上无声地转动。
涂了润滑油的齿轮
The greased gears meshed smoothly without noise.
涂了润滑油的齿轮啮合顺畅，没有异响。
涂过油脂的表面
The parts slid easily along the greased surface.
零件在涂过油脂的表面上轻易滑动。
飞快地，极速地
When he heard the alarm, he ran like greased lightning to the exit.
听到警报后，他像闪电一样飞快地跑向出口。
使事情顺利进行，铺平道路
The manager's approval greased the wheels for the entire project.
经理的批准为整个项目的顺利进行铺平了道路。
出自音乐剧/电影《油脂》（Grease）中的经典歌曲《Greased Lightnin'》。greased lightnin'（greased lightning）意为“极快的东西”，greased 本义是“涂了油的”，涂油使运动更顺畅，引申为飞快、有劲。
The greased bearings help the machine run smoothly.
涂过油的轴承让机器运转得更顺畅。
Use greased 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：门轴吱呀响时涂上油脂（grease），变成“greased”——已涂抹油脂、摩擦减少的状态。记住-ed表示“已……的”。
语域：neutral 常见场景：机械维护、烹饪、工业操作 该词条表示字面意义的“涂了油脂/润滑油以减少摩擦”，通常用于机械维护、烹饪或工业操作场景，语气中性，口语和书面语都比较常见。
这些词都以 /iːst/ 结尾，与 greased 的形容词读音 /ɡriːst/ 押韵。拼写提醒：beast、feast、least、east 中的 -east 与 greased 的 -eased 读音相同但拼写不同；released 与 greased 一样都含 -eased。另注意：greased 作动词过去式时常读 /ɡriːzd/，不要与 pleased /pliːzd/ 这类 /iːzd/ 结尾的词混淆。
Dictionary facts from AI_FALLBACK, ECDICT, WORDNET.