With the command "Translate" you can translate selected cells into another language. You need a Microsoft Azure key, which you can enter in the settings dialog in the "Translate" tab.
Select the desired cells that you want to translate
Click the "Translate" command in the "Tables Utilities" panel of the Revit ribbon
In the dialog you can select the language that you want to translate into
Confirm the dialog with OK
A moment later your selection is translated into the selected language.