A: Have you talked to Mr. Smith about Ben's obscene speech towards you?

A: 你跟 Smith 先生提过 Ben对你讲的猥亵的话吗?

B: Yes, but he brushed it off as if it were not a big deal to him.

B: 有! 但他轻轻带过(不理), 好像觉得那并没有什么!

"brush away(aside)" 也是“不理”的意思。

如"He brushed aside our objection."(他无视我们的反对)。