It means that both sides can open positions. Generally speaking, if you think it will rise, you will enter more, and if you fall, you will enter the air. These two can make a profit as long as the direction is clear, but don't think it's easy because they can operate on both sides. Making crude oil is a long-term thing, not a day or two. Be careful on the road. Don't be greedy, and don't take chances. For example, if I do more now, even if I fall, I will always rise. If you really want to do it well, I suggest you be more careful. If you can have a steady income, you will be very successful. This is also beside the point. I hope it works for you.