vt.

1. 擦，磨擦；使相擦[（+against/on）]
   The cat rubbed its back against my leg.

   猫用背擦我的腿。

2. 用……擦，擦上[O][（+on/over/into）]
   He rubbed himself with a towel after the cold shower.

   他冷水淋浴后用毛巾擦身。

3. 把……磨擦得[O][O8]
4. 触痛，惹怒
   His rough manner rubbed her.

   他粗野的举止惹恼了她。

5. 摹拓

vi.

1. 磨擦；擦到[（+on/against）]
   The door rubs on the floor.

   这门擦到地板了。

2. 被擦掉[（+off/out）]
3. （皮肤等）擦破，擦痛；（衣服等）磨损
4. 使人恼火（或烦恼）

n.

1. 摩擦，擦[S]
   Give the table a good rub.

   把这张桌子好好擦一擦。

2. 磨损处；擦痛处[U]
3. 困难；疑难点；要点[the S]
   We need money badly, but there's the rub: no one will lend us any.

   我们急需要钱，但困难的是：谁也不会借钱给我们。

4. 嘲讽[U]

v.

1. apply firm pressure to the surface of, using a repeated back and forth motion.
   ▸move to and fro against a surface.
   ▸apply with a rubbing action:

   she rubbed some cream on her nose.
   ▸ (rub something in/into/through) blend or mix ingredients together using a rubbing action:

   rub in the fat.
   ▸ (rub something down) dry, smooth, or clean something by rubbing.
   ▸ (rub something out) chiefly Brit. erase pencil marks with a rubber.
2. (rub off) be transferred by contact or association.
3. (rub along) Brit. informal cope or get along without undue difficulty.
4. reproduce the design of (a sepulchral brass or a stone) by rubbing paper laid on it with pencil or chalk.
5. Bowls  (of a bowl) be slowed or diverted by the unevenness of the ground.

n.

1. an act of rubbing.
2. an ointment designed to be rubbed on the skin.
3. (usu. the rub) the central or most important difficulty. [from Shakespeare's Hamlet (iii. i. 65).]
4. Bowls  an inequality of the ground impeding or diverting a bowl.
   ▸the diversion or hindering of a bowl by this.