She was thumbing the dictionary.

她在翻字典。

It is a thumbing of the nose at hegemony.

而是对霸权的蔑视。

I was thumbing through a magazine when she walked in.

她走进来的时候我正在翻阅一本杂志。

I was thumbing through a magazine when a secretary came in.

我正在翻阅一本杂志，秘书走了进来。

Get out those old picture albums and start thumbing through them.

找出老照片并且开始翻阅。