Once they find the name, many rub a pencil on paper over the letters to copy it.

VOA: special.2009.05.25

Every time I drive the steering wheel of my car, I rub off some items. But that's OK, it's still the very same physical object.

每次我使用方向盘时，都会摩擦掉一些微粒，但没关系，它还是原来那个物体。

耶鲁公开课 - 死亡课程节选

Now those oligarchies were based on different things, and that's where the rub came.

但这些寡头是建立在不同基础之上的,正是这一点导致了双方的摩擦

耶鲁公开课 - 美国内战与重建课程节选

Buff is also a soft cloth used to rub a surface until it looks bright and shiny.

VOA: special.2009.05.17

And because she is so important, she sometimes gets to rub shoulders with the top officials.

VOA: special.2010.01.24

Political analyst Richard Wolffe told VOA that world leaders want some of Mr.Obama's popularity to rub off on them.

VOA: standard.2009.04.03