In our teaching practice, we often observe that due to the lack of prerequisites and limited mastery of a language, foreign students face difficulty in understanding course contents. This especially burdens students from Eastern and SouthEastern Asia, because of the distance between their native languages and the instructional language (French in our case). We propose a quick and cost-effective method for producing educational content in the native tongues of the students using monolingual sources, through a contributive computer-assisted multilingualization by voluntary participants. The process consists in post-editing MT (Machine Translation) pretrans-lations via an interactive multilingual access gateway, which displays a web page in a selected language. Since 2012, several students have validated the approach by producing in Chinese more than 500 pages (125K words) of French undergraduate and graduate course material about computer science, at a rate of about 10 minutes per standard page. This multilingual resource is freely accessible on the XXXXX-Chamilo platform.