Definition
Concerning or relating to a particular subject or matter.
關於；就...而言
In regard to this project, we require additional resources.
關於這個項目，我們需要更多的資源。
I am writing to you with regard to your inquiry yesterday.
我寫信給您是關於您昨天的詢問。
The are discussing matters with regard to the future direction of the company.
他們正在討論關於公司未來方向的事宜。