multi-languages in a table

I'm migrating from mysql to postgresql.
I've several (mysql)tables with multi-language columns:

descript, descript_gb, descript_b5, descript_sp

they store the record's description in
English, SimplifiedChinese, TraditionalChinese and Spanish respectively.

I don't know if this will work in postgresql: I need to query those columns
(one language at a time). And I hope the contents in those columns
can be displayed in web (one language at a time) easily.

Any suggestions? Thanks