他的回答很隐晦，似乎含有某种隐藏信息。

His response was ___coded, as if containing some hidden message.

消息被编码成二进制数据以便安全传输。

The message was ___coded into binary data for secure transmission.

医院给每位病人的档案都编了号以便管理。

The hospital ___coded each patient's file for easy management.