C2c
abbr. 消费者对消费者的电子商务模式（Consumer To Consumer）
🗣️ 情景例句
Is room service available?
有房间服务吗？
He speaks English fluently.
他讲英语很流利。
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。