Definition
to encounter someone or discover something by chance
無意中發現；碰見；邂逅
I came upon a hidden garden while taking a walk.
我散步時無意中發現了一個隱密的花園。
She came upon an old friend at the bookstore.
她在書店裡偶然遇到了一位老朋友。
We came upon a breathtaking mountain view during our trip.
在旅途中，我們偶然看到了一處令人驚嘆的山景。