Cách sử dụng
Celluloid is a word that is used to describe a type of plastic that was used a lot in the past to make movie film and other items like combs and buttons. Nowadays, it is not used as much as before, but you might still hear it used when people are talking about old movies or vintage items. So, if you hear someone say "celluloid" they might be referring to something that is old, or something that was made from that type of plastic.