High fire: If the water boils quickly, the flavor will be fresh and tender (such as when vegetables are stir-fried over high heat); if the water boils slowly, the soup will be overcooked (such as when vegetables are stir-fried over slow fire and the flavor will be lost).
High fire: If the water boils quickly, the taste is fresh and tender (such as frying vegetables over high fire); Boil slowly, then the soup is old and ripe (such as slowly frying vegetables that lose all their fragrance).
Fire: when water boils fast, it tastes fresh and tender (such as frying vegetables in fire); If it boils slowly, the soup will be ripe, eg when cooking with slow fire, the fragrance will be lost.