Looking at the history of reviewed questions with a pending close vote, I noticed that a page shown, "This item is not reviewable."
Does that means it is not reviewable only from me, or from anybody else?
On Stack Overflow, when I watching in a review queue a post I have already reviewed, what I read is the following:
You have already reviewed this item. It needs more reviews from other users to be completed.
The phrase used on ELL seems to say "this item is not anymore reviewable from anybody."