general statement of what happened when请问这句短语如何翻译?尤其是what happened when这一部分怎么讲?

问题描述:

general statement of what happened when
请问这句短语如何翻译?尤其是what happened when这一部分怎么讲?

what happened when是“当.时发生了什么(出了什么事)”的意思.如
What happened when you played football yesterday?(昨天你打足球时出了什么事?)