Some think da Vinci wanted to keep his ideas secret as he wrote his diary in code.

一些人认为达芬奇想把他想法保密起来，因为他日记是密码写。

" I thought they were written in cipher, " I said.

“我以为它们是密码写，”我说。

Well, Nate stole diana's day planner, and, uh, it's all in code so no one knows what it says.

内特来了戴安娜日记簿，不过都是密码写 没人知道里面内容是什么。

The messages were written in code on her sheets of music.

这些信息是密码写在她乐谱上。

This letter is of a particular interest, partly because it's in code, a not very complex number for letter substitution, but also because it was written at the turning point of Napoleon's career.

这份书信是密码写，字母替换法也不难理解，而且书写这封信时，拿破仑正处在事业转折点，因此这封信很有趣。

A team of cryptographers has discovered and deciphered a series of 50 letters written in code by Mary Queen of Scots during the time of her imprisonment in England by Queen Elizabeth I in the 16th century.

一个密码破译小组发现并破译了苏格兰玛丽女王在 16 世纪被伊丽莎白一世女王监禁期间密码写 50 封信。