Leafing through a magazine, I chanced upon a photo of an old high school friend, Robert Mason.我在随手翻阅一本杂志时，无意中看到一幅高中时的老朋友罗伯特·梅森的照片。I spent the evening with an old school friend.我跟一个老同学一起度过了那个夜晚。While I was in the queue at the bank I met an old school friend.我在银行排队时遇到了一位老同学。I met an old school friend today.今天我遇到了一位老校友。