as to
01
关于, 至于
used to introduce a topic or issue and provide information about it or clarify it
例子
As to the question of who will lead the project, that decision has not been finalized yet.
关于谁将领导这个项目的问题，该决定尚未最终确定。
We received inquiries as to the availability of the product; rest assured, it will be back in stock next week.
我们收到了关于产品可用性的询问；请放心，下周它将重新进货。
