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

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