Topics
abbr. 总联机程序和信息控制系统（Total On-line Program and Information Control System）
🗣️ 情景例句
How fast can my mail be received?
我的信件多快会被收到？
An evil lesson is soon learned.
学坏容易。
I'd like to get this film developed.
我要冲洗这卷胶卷。