go about your business idiom
继续从事日常事务
to continue doing what you usually do
In spite of last night's terrorist attack, most people seem to be going about their business as if nothing had happened. 尽管昨晚发生了恐怖袭击，大多数人似乎还是像平常一样生活工作，好像什么事情也没有发生过。