Op. cit.
abbr. 前面引用的书(in the work already quoted)
🗣️ 情景例句
So tell me about your educational history.
请告诉我你的教育经历。
Education for women has improved in leaps and bounds.
妇女教育十分迅速地得到了改善。
Bluebird, the car he was driving, had been specially built for him.
他驾驶的“蓝鸟”牌汽车是专门为他制造的。