Since I have studied dance, I should know that straight legs are all pressed out, which can be said to be born rare. You should have a good foundation. Now your calf feels like an O-shape, which is actually caused by the lack of joint ligament strength. You can make a movie if you don't believe me. Leg press can exercise the strength of joint ligaments, which naturally makes his legs look straight. At the same time, we should also strengthen strength and flexibility exercises, especially flexibility exercises, which are very beneficial to the shaping of legs. Physical exercise is essential for girls to become elegant. I remember you saying, "If you want to impress others, you have to go to leg press every day." .