I chanced to run into an old classmate this morning .
今天早上我碰巧遇到了一位老同学。
I chanced to be in when she called .
她打电话时我碰巧在家。
Then in 2007 , I chanced upon an assignment of photographing catholic nuns .
后来,在2007年,我碰巧接到了一个拍摄天主教修女的任务。
I chanced upon a couple canoeing through the most famous tunnel in atlanta , the krog street tunnel .
在亚特兰大最著名的克罗格街隧道里,我偶然遇见一对划独木舟的夫妇。
I chanced upon a website with a green and red flag that I 'd never seen before , and thought it was about another country .
我偶然浏览到一个印着绿色和红色旗子的网站,这个网站我从没见过,我以为它是另外一个国家的。
So when I chanced upon data a couple of years ago saying that certain americans were living in a manner that facilitated happiness -- while others were not -- I jumped on it .