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Brush off 不理睬
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)。