First frost: Pinyin, shuāng, pictophonetic characters, Ziyu, cross talk. Original intention: White crystallization of water vapor in the air near the ground when the temperature drops below zero degrees Celsius.

Combination words: frost, frost, icing, wind frost, arsenic, eye cream, icing.

Mountain travel

Author: Du Mu (Tang)

In the distance, there are cold mountains, oblique stone paths and people in the depths of white clouds.

Stop and sit in the maple forest late, and the frost leaves are red in February flowers.