Do you think it is worthwhile to shape this piece? Do you think it is worthwhile? First, look at your intentions, and then look at your financial situation. According to this, your coach is quite professional, and people themselves are a whole, which is great. Sometimes the real problem on the leg may even be the waist, but in any case, we must adhere to a healthy, safe and effective way. Personally, I think it is necessary for beginners to choose songs for private education! ~