Relier Pairs Secret WritingVersion en ligne ........... par Tea Cher 1 Scalp 头皮 2 Alum 明矾 3 Substitution 代换 4 Ancient 古老的 5 Cryptography 密码学: 6 Secret agent 密探 7 Cunning 狡猾 8 Transposition 换位 9 Steganography 隐写术 10 Vital information 重要信息 The practice or study of techniques for secure communication in the presence of third parties. A person who works covertly to gather information or perform espionage activities. Clever, sly, or crafty in achieving one's goals or solving problems. The practice of concealing messages or information within other non-secret data. The skin covering the top of the head. Critical or essential information that is of utmost importance. Belonging to a time long past, typically referring to a period in history. A chemical compound used for various purposes, including as a mordant in dyeing and as an ingredient in some inks. The act of changing the position or order of something. The act of replacing one thing with another.
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