make a living as a performer ;
例句:
The brothers all live by practicing martial arts.
他们哥几个都是靠打把式卖艺为生.
In the market, there are many actors performing there by the stall.
集市上有很多艺人撂地卖艺.
These perfomers come from all walks of life.
这些卖艺的是九流三教,什么人都有.