what is currency mining

I don't understand why Big A likes to let the cultural media take the back seat so much … every time …The cultural media has completed the final sprint ... When the cultural media was still more than 6,000 points, it was said that it would sail to 11,000 points ...I don't understand why Big A likes to let the cultural media take the back seat so much … every time …

The cultural media has completed the final sprint ... When the cultural media was still more than 6,000 points, it was said that it would sail to 11,000 points ...The cultural media has completed the final sprint ... When the cultural media was still more than 6,000 points, it was said that it would sail to 11,000 points ...I don't understand why Big A likes to let the cultural media take the back seat so much … every time …

I don't understand why Big A likes to let the cultural media take the back seat so much … every time …