Kdc
密钥分配中心
🗣️ 情景例句
A little over two hours.
两个钟头多一点。
A plant may produce new flowers; man is young but once.
花有重开日，人无再少年。
She was choosing a book. He told her about the accident.
她正在选书。他将发生的情况告诉了她。