Comn
abbr. common 共同的; 公共的; communication 通讯; 交通
🗣️ 情景例句
You should use 'officer' to address a policeman.
你应该用 'officer' 来称呼警察。
Good. That's just what we want to hear.
很好，那正是我们想要听的。
Even if a piped water supply is safe at its source,
既使管道供水系统在水源处是安全的，