Kdc
密钥分配中心
🗣️ 情景例句
Please hold on a moment.
请等会儿。
Sincerely hope that your visit here will be worthwhile and meaningful.
衷心希望您的来访有收获且意义深远。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。