• Chen (陈) is pronounced as "chn" with a soft "ch" sound, similar to the "ch" in the Scottish "loch". The "e" is pronounced as a soft "uh" sound.
• Chang (长) is pronounced as "chahng" with a rising tone, where the "a" is pronounced as a long "a" sound.
• Sheng (生) is pronounced as "shng" with a rising tone, where the "e" is pronounced as a soft "uh" sound.

So, the full pronunciation of Chen Chang Sheng is: "chn chahng shng".