Fail to decode什麼意思

"Fail to decode" is an expression that means there has been an attempt to convert or interpret a code, cipher, or encoded message into its original form, but the attempt has been unsuccessful. The phrase is often used in the context of computer science, cryptography, or any situation where data is stored or transmitted in an encoded format.

For example, if you receive an email that contains a message that is encrypted, and you try to decrypt it using a key but are unable to do so, you would say that you have failed to decode the message. Similarly, if a computer program tries to interpret some data that is stored in a compressed or encoded format but is unable to do so, it would be said to have failed to decode the data.