Fluorizating agent
[化] 氟化剂
🧩 词语组成解析
🗣️ 情景例句
Mrs. Stewart and I
Stewart太太和我
When guns speak it is too late to argue.
待到炮声响，辩论已莫及。
A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
数小时以前，有人向警方报告，说有人企图偷走这些钻石。