Op. cit.
abbr. 前面引用的书(in the work already quoted)
🗣️ 情景例句
Max looks just like Grandpa.
Max长得真像爷爷。
I would like to enlarge this film.
我要放大这底片。
Ann began to put the candles on her cake. Then she counted them.
安开始把蜡烛插到她的生日蛋糕上。插完，她数了数。