Create keyboard shortcuts for apps on Mac
You can create keyboard shortcuts only for existing menu commands. You can’t create keyboard shortcuts for general purpose tasks, such as opening an app.
If you create a keyboard shortcut that already exists for another command or another app, your new shortcut won’t work—you need to change your new shortcut or the other shortcut. To change a shortcut, select it, click the key combination, then press a new key combination.
To remove a shortcut that you created, select the shortcut, then click the Delete button
From what is presented in below image - not seeing Translate as an option
