Don't sit by the pool, especially soak your feet at both ends of the lane. When others swim, they feel sick when they see your feet.

Pay attention to fresh breath, otherwise heavy breathing during rest will make people sick; When angry, my solution: exhale underwater and practice breathing by the way.

Don't swim against the current unless you occupy a road by yourself;

Superman passes quickly from the left, don't compete with the overtaken. The latter two were speeding in the same lane;

When resting at the end of the road, please try to pull over and make room for those who directly turn around and don't rest;

When you see others swimming close to the pool, don't start pedaling, don't stop suddenly in the middle of swimming, and don't press the waterline.