偶然

我们偶然碰到了她。

我們偶然碰到了她。

We met her by accident.

他偶然在古董店裏發現了這個舊硬幣。

He came across this old coin in an antique shop.

他乘飛機去了芝加哥，在那裏偶然遇見了一個朋友。

He flew to Chicago, where he happened to see a friend.

我偶然在巴士上碰見了一位舊朋友。

I bumped into an old friend on the bus.

我偶然發現了那本書。

I found the book by accident.