C1930 Waste
Looking at the happy Cheng Qiang, Katerina said, "Breathing is the key, while your four limbs are only supplementary. Feel the rhythm of breathing, make your four limbs move, find that feeling, if you still can't learn it, you can just sink and stay at the bottom of the sea."
With that, Katerina left Cheng Qiang's side and swam to the other side.
On the other side, a landlubber needed her help