【例句】
I found this old photo by chance when I was looking for something else.
我在找其他东西的时候碰巧找到了这张旧照片。
We heard about it quite by chance, from someone in the shop.
我们碰巧从店里的一个人那里听说了这件事。
I found this old photo by chance when I was looking for something else.