摺"巢"英文點講

唔好摺巢件文件.

Don't crease the document.

摺 = fold
巢 = wringled

摺巢 = fold and make it wringled

crease = fold and leave a folded line or a wringle = 摺巢

*"don't wringle up the document" is close, but it means "don't make the document wrinked", and not specifically "don't fold and make the document wrinkled", so it is less precise as "don't crease the document" as a direct translation of "唔好摺巢文件".

摺縐紙 - Crease a paper最正確通用。
例:
4.Don't crease the paper ...http://www.ehow.com/how_2272626_make-perfect-square-from-regular-paper.html
Don't, however, fully crease the paper at the fold...http://weirdsciencekids.com/paperairplane.html

人唔好摺巢件文件

Please do not fold this document
.or
Please do not fold!

please dont fold these document

please keep these document steady and unfold.

fold 即係摺 你唔摺佢就唔會"巢"啦，所以叫人唔好摺就得啦

唔好用wrinkle...wrinkle 係用係皮膚上面

Don't make any wrinkles in the paper.(wrinkle as a noun)
Please do not wrinkle this sheet of document. (wrinkle as a v.t. or v.i.)