光临…而使之蓬筚生辉;莅临而为（某人）增光
to honour people by taking part in something
We are delighted that the mayor will be gracing us with his presence at our annual dinner. 市长将光临我们每年一度的宴会，我们感到万分荣幸。
humorous So you've finally decided to grace us with your presence, have you? (= You are late.) 你看，你终于肯光临寒舍了，大驾难起啊，是吗？（幽默地表示“你迟到了”这个意思）
I am delighted to say that our beloved leader graced us with her presence.
I certainly hope Tom will be gracing us with his presence tonight.
I'd heard that Emily, no less, might be gracing us with her presence.
See also: grace verb