what does it mean? I can't find it in dictionary?
on the sur?
Context please...
"sur" doesn't mean anything, unless we're talking about an acronym (word formed from the initial letters of the several words in the name).
Or maybe you missed the 2nd part of the word:
"... on the surface of..."?
"... on the survival..."?
"sur" doesn't mean anything, unless we're talking about an acronym (word formed from the initial letters of the several words in the name).
Or maybe you missed the 2nd part of the word:
"... on the surface of..."?
"... on the survival..."?
That's from my textbook, I just can't find it now, I will post it when I find out. Thank u!