1. 揉;按摩;搓
    If you rub a part of your body, you move your hand or fingers backwards and forwards over it while pressing firmly.

    e.g. He rubbed his arms and stiff legs...
           他按摩着自己的胳膊和僵硬的双腿。
    e.g. 'I fell in a ditch', he said, rubbing at a scrape on his hand.
           “我掉进沟里了”，他一边说着，一边揉着手上的擦伤。

2. 摩擦;蹭
    If you rub against a surface or rub a part of your body against a surface, you move it backwards and forwards while pressing it against the surface.

    e.g. A cat was rubbing against my leg...
           一只猫在我腿上蹭来蹭去。
    e.g. He kept rubbing his leg against mine.
           他不停地用腿蹭我的腿。

3. （用布）擦干，擦净，擦拭
    If you rub an object or a surface, you move a cloth backward and forward over it in order to clean or dry it.

    e.g. She took off her glasses and rubbed them hard...
           她摘下眼镜使劲擦着。
    e.g. He rubbed and rubbed but couldn't seem to get clean.
           他擦了又擦，可就是擦不干净。

4. 涂抹;搽;擦去
    If you rub a substance into a surface or rub something such as dirt from a surface, you spread it over the surface or remove it from the surface using your hand or something such as a cloth.

    e.g. He rubbed oil into my back...
           他往我的背上抹油
    e.g. I pretended to rub a fleck of grit from one eye.
           我假装拭去一只眼睛里的沙粒。

5. 相互摩擦;揉搓
    If you rub two things together or if they rub together, they move backwards and forwards, pressing against each other.

    e.g. He rubbed his hands together a few times.
           他搓了几下手。
    e.g. ...the 650-mile rift that separates the Pacific and North American geological plates as they rub together.
           太平洋和北美洲地质板块相互摩擦时产生的一条长达650英里的裂缝

6. 擦伤;磨痛
    If something you are wearing or holding rubs, it makes you sore because it keeps moving backwards and forwards against your skin.

    e.g. Smear cream on to your baby's skin at the edges of the plaster to prevent it from rubbing.
           在宝宝贴膏药的皮肤边缘涂上护肤霜，以防止膏药擦伤皮肤。

7. 困难;难处;障碍
    Rub is used in expressions such as there's the rub and the rub is when you are mentioning a difficulty that makes something hard or impossible to achieve.

    e.g. 'What do you want to write about?'. And there was the rub, because I didn't yet know.
           “你想写什么？”难就难在这儿，因为我还不知道写什么。

8. 按摩
    A massage can be referred to as a rub .

    e.g. She sometimes asks if I want a back rub.
           她有时会问我想不想做个背部按摩。

9. 按摩膏;面膜
    A rub is a substance that you massage into your skin.

rub的意思

    e.g. ...a fresh cucumber rub for your whole face.
           用新鲜黄瓜给整张脸做的面膜

10. see also: rubbing

11. （尤用于美国英语）和（名人）接触，和（名人）交往
      If you rub shoulders with famous people, you meet them and talk to them. You can also say that you rub elbows with someone, especially in American English.

      e.g. He regularly rubbed shoulders with the likes of Elizabeth Taylor and Kylie Minogue.
             他经常与伊丽莎白·泰勒和凯莉·米洛这样的人接触。

12. 无意中冒犯;无意中惹恼
      If you rub someone up the wrong way in British English, or rub someone the wrong way in American English, you offend or annoy them without intending to.

      e.g. What are you going to get out of him if you rub him up the wrong way?
             你要是不小心把他惹毛了，你有什么好处？

13. to rub someone's nose in it -> see nose
      to rub salt into the wound -> see salt

相关词组：rub alongrub downrub inrub offrub out