Cdkey
n. 激活碼；序列號
??? 情景例句
I'm all ears.
我洗耳恭聽。
Ignorance is the mother of impudence.
厚顏無恥由于愚昧無知。
This time it was the postman and he wanted me to sign for a registered letter!
這次是郵遞員，他要我簽收一封掛號信！