Not all members who are not dancers can split their backs or something. After entering the company, the company will certainly train them in all directions. Basic skills need to be practiced, and so does the body. As for how they practice, it depends on themselves. Then the company will see what they are good at, and then determine whether they dance or sing, even if they just look, dancing and singing are not bad. In fact, not every member can bend down and split. Maybe they practiced specially for a performance. Nicole is soft, but she can't sit and stretch forward in leg press (see Nicole's college program). Xiaoyuan has been receiving dance training, and also acted as body double in Bao Er. That's not soft. Pop dance is very good. Nicole, Jia Ren and Xiao Yuan all bent down and split. You can see some of their programs.