Monoalphabetic
substitution(密码学用语)单码代替,单一字母替换法
🗣️ 情景例句
I'm very tired.
我很累了。
The telephone is ringing.
电话铃响了。
I arranged to meet Jane after work last night but she didn't turn up.
我昨晚安排下班后见简，但她没来。