secret code

汉语翻译

英语解释：

名词 secret code:

1. a secret method of writing
   同义词：cipher, cypher, cryptograph

例句：

1. The gangsters threatened to bump him off if he did not tell them where the secret code was hidden.
   匪徒们威胁说，要是他不说出密电码藏在哪儿，就要把他干掉。