Another pronunciation of "Lu" is used in some spoken English words. Such as "making a fool of yourself" and "showing the cloven foot". Dew represents fleeting things, and youth is fleeting-the grass is on the grass, the dew rests at the first night, the clouds are fragrant, and the breeze blows on the threshold to show off the flowers-I think what the creator means is that Yang Fei coincides with her youth, which is like a flower shadow, with years as precious as dew, and at the same time is loved by the Emperor of the Tang Dynasty.
The monarch's love is short-lived, and there is no trace of morning dew. The significance of "dew" in ancient poetry is only found in Song of Eternal Sorrow: the "dew" in ancient poetry is generally "night dew", "morning dew" and "night dew". Morning dew means morning dew. "Night dew" was crystal clear before the sun came out, but with the gradual rise of the sun, the life of night dew also died. Lu is a disyllabic word with two forms: noun and verb. When used as a noun, it means dew. Take ancient poetry as an example:
Put out the candle to love this moonlit room, and I wander in the deep night dew in my clothes. Small dewdrops are available all year round, which really doesn't mean anything. It only happens after midnight and in the morning, which is the morning. When it is used as an adjective, it has an exposed and obvious meaning. On the level of ancient poetry, for example, Xiao He only showed his sharp corner, and a dragonfly had already stood on it. To express the poet's feelings by combining the poems of ancient poetry, uncovering the words is at best a screw in the poem.