Traditional Culture Encyclopedia - The 24 Solar Terms - What does "he knows that the dew will be frost tonight" mean in Lu? Reading?

What does "he knows that the dew will be frost tonight" mean in Lu? Reading?

"He knows that the dew will frost tonight, and how bright the moonlight is at home! "This poem comes from" My Brother on a Moonlit Night "written by Du Fu, a poet in the Tang Dynasty, which means" Tonight is the season of the Millennium, and the light is shining all over the earth. Unconsciously, my heart is a little chilly, and naturally I think of my distant brothers, yearning for the moon. The moonlight in my hometown should be rounder and brighter than that in other places. "

He knows that the dew tonight will be frost: it refers to the "white dew" that is upright overnight.

[Millennium]

White Dew

(one of the 24 solar terms)