经济学人下载:美国遇史上最严重黑客入侵,幕后黑手系俄罗斯?(3)

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On some vital decisions employees were only informed after the fact.

有一些重大决策雇员只在事后才获悉。

2. be irrelevant in 无关紧要

He acknowledged that Mr Taylor's colour and ethnic origins were utterly irrelevant in the circumstances.

他承认在这种情况下泰勒先生的肤色和种族出身完全无关紧要。