Mao Zedong, a great man, wrote in "Spring and Snow in the Garden": "Is the northland ... extraordinarily enchanting? . "Please write down the changes of state in the poem (3 kinds).

Solidification and sublimation

Ice is made of water-the process from liquid to solid is called solidification.

"Wan Li Snow Drift": Snow falls because water vapor condenses into small ice particles-the process from gas to solid is called condensation.

Only the vast land is still frozen in the snow.

Fluctuation loss or icing.

Mountain dancing silver snake, the original wax elephant, see if it is wrapped in red or snow condensation.