n.密码；阿拉伯数字；零；暗号

v.计算；做算术；将 ... 写成密码

The army uses a special cipher so that military messages are kept secret. 军队使用一种特殊密码,军事电讯因此得以保密。

The cipher took me three weeks before I hit it. 我费了3个多星期才把这密码解释出来。

Age is only a number, a cipher for the records. A man can't retire his experience. He must use it. Experience achieves more with less energy and time. 年龄只是个阿拉伯数字。一个人不能让他的经验退休。他必须用它。依靠经验，可以用较少的精力和时间获得更多。

I couldn't cipher out why she was there. 我搞不清她为什么会在那儿。

He went to school at the age of forty, and learned to read, to write, to cipher. 他四十岁进学校，学习了读，写，算。