Complex sentence: Since 1948, VTT has graduated more than 2000 students, supported by a community that has spent many hours volunteering, and contributed to the various fundraisers and campaigns that have built the successive wings of the school.
Split into simpler sentences: Since 1948, VTT has graduated more than 2000 students. Behind them caring community that spent countless hours volunteering, and contributed to the various fundraisers and campaigns that have built the successive wings of the school.