The lake regulates the climate.

(1) Because of the large specific heat capacity of water, in a day, compared with sand and stones, water with the same quality absorbs the same amount of heat, and the temperature of water rises; At night, people release the same amount of heat, reducing the temperature of water, reducing the temperature difference between day and night, and playing a good role in regulating the surrounding temperature;

(p) When boating on the lake, the position of the ship relative to the coast has changed and the ship is moving.

So the answer is: big, sports,