cipher的解释
n. 零,暗号
v. 计算,做算术
cipher的例句
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。

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。＂