It was a difficult task, but we brought it off.
任务艰巨，但我们圆满完成了
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动词bring于介词off搭配，就等于accomplish，意思是“使实现，做成”（to carry to a successful conclusion ），通常在一些相对正式的场合使用。
例句：
We've brought off a successful advertising campaign.
我们打了一场漂亮的宣传仗。
海纳百川，有容乃大；壁立千仞，无欲则刚。