I don't think any ride needs an "interpreter".
On my very first visit back in 2009, I was handed a card at Tower of Terror which provided a brief rundown of the "story", but I've never received a card on subsequent visits. Similarly, on my first visit, I recall getting some kind of iPad like device with an English translation for the Genie's Magic Show (or whatever it is called), but I didn't get one on my most recent visit (which was only the second time that I've seen the show). I don't recall ever receiving anything similar for any other show or ride at DisneySea.
Do you have a particular concern? The "theming" on most rides does a good job of telling the story. I don't think much is lost in translation.