ONE PHRASE, IN CONTEXT
what happened to
……怎么了;……发生了什么

GET TO KNOW THE MEANING
读懂它,也学会这样说。
01……怎么了;……发生了什么
IN A SENTENCE
What happened to the blue umbrella you used on the walk yesterday?
你昨天散步时用的那把蓝色雨伞去哪儿了?
What happened to the query performance?
查询性能发生了什么变化?
