The English name of Ds is "Dancer", and the Chinese translation is "Dancer, Dancer, or dancing is commonly known as Ds in China". DS usually refers to the person who leads the dance in the night show, that is, the person who leads everyone to dance. It shows that dance is dance and dance music is dance music, so Dancer is a dancer, and DS can be understood as a dancer or a dancer!

Supplementary answer: Very few, hee hee.

This can't be answered. Everyone has his own set of values. Some people do it for money, some people are forced by life, and some people just regard it as a job.