Monoalphabetic
substitution(密码学用语)单码代替,单一字母替换法
🗣️ 情景例句
Railroad stations or airports--Grandpa always tells us he'll get here by himself.
无论是火车站还是机场，爷爷总是说他会自个儿设法到这 。
Look who's talking!
怎么不说你自己？
What are you doing?
你在干什么？