Foating?
Maybe the intended word is "floating", but I still don't know what the sentence is supposed to mean.
Somehow the word "floats" doesn't seem to fit, I think.
The top cover of a gasoline tank ___ while it is being filled.
What would be a word that would fill in this blank and make sense?
This is the only sentence by this member, doesn't make sense, and has no translations.
Perhaps it should just be deleted.
"Expands"?