Op. cit.
abbr. 前面引用的书(in the work already quoted)
🗣️ 情景例句
Will you please try to relax?
能不能放轻松些？
If you take quality into consideration, you will find our price reasonable.
如果您把质量考虑进去的话，您会发现我方价格是合理的。
In many countries, more and more companies are replacing people with computers.
在许多国家有越来越多的公司使用电子计算机来代替人。