名词
中文翻译：代码
同义词：
['cipher', 'codeword', 'cryptography']
例句：
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1. The programmer needs to enter the correct code to unlock the door.
程序员需要输入正确的代码才能打开门。
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2. The secret code was written in a book that was hidden in the library.
这个秘密代码被写在图书馆里一本被隐藏的书里。
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3. The police used a special code to decrypt the message.
警方使用一种特殊的代码来解密信息。