The old school tie still has enormous power in such companies.在这样的公司里，老校友关系网仍然有很大的影响力。I chanced on an old school-friend in the street yesterday.我昨天在大街上偶然遇到一个老校友。Some old school friends came to see me last week.一些老校友上周来看我了。They were old school/college chums.他们是老校友／大学校友。