Sure. If I select the word “Gift”, how much work does it need to decide whether it's English? How much more context does it need, and where does it get it? What if it guesses wrong and doesn't show the translation button?

If you put machine learning into the loading of a right click menu, I want you to step on a Lego barefoot immediately afterward.

Right click menus should be instant. No fade in. No animation. No spinner. And certainly not any machine learning calls.