“在这以前”常见的英文表达有 before this、prior to this 或 before that time(根据具体语境“这”所指的时间而定,若明确为较近的过去某个时刻,“that time” 可替换具体表述) 。
Before this:是比较口语化、常用的表达。例如:Before this, I had never been abroad.(在这以前,我从未出过国。)
Prior to this:相对更正式一些,常用于书面语。例如:Prior to this event, we had made careful preparations.(在这件事以前,我们已经做了精心的准备。 )
Before that time: “that time” 指代前面提到的某个具体时间点。例如:We met at a party last year. Before that time, we didn't know each other.(我们去年在一次聚会上相遇。在这以前,我们互不相识。 )