A code USES symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book.
一个密码用符号来代替单词，短语或者句子。想要解读一个真正的密码信息，你必须有一个密码本。
The dictionary or surface meaning of the words or code used by the sender is not the message.
语言的字典含义或字面含义、说话者运用的规范都不是要表达的讯息。
The dictionary or surface meaning of the words or code used by the sender is not the message.
语言的字典含义或字面含义、说话者运用的规范都不是要表达的讯息。
应用推荐