a mere cipher

例句：

1. 1. The code was brokenby a clever detective.
   一个聪明的侦探破解了密码。
2. 2. The cipher message was sentto the recipient in a coded manner.
   加密信息以代码形式发送给接收者。
3. 3. The cryptogram was decipheredby experts who had studied the language.
   专家们研究了这种语言后解开了密码。