翻译说明用英文怎么说短语

"Usage instructions" or simply "Instructions" is a commonly used phrase to refer to explanation on how to use something, especially in the context of products or software.

Here are some examples:

"Please read the usage instructions before using this product."
"The instructions manual will guide you on how to operate the device."
"We have included usage instructions in the package for your convenience."

In short, "Usage instructions" or "Instructions" is a phrase used to refer to the guidepnes or steps on how to use or operate something.