Which poem does the word time flies come from?

Only the first sentence. It means that time goes by, and the literal meaning of the change of years is that time goes by little by little. The metaphor of time flies, year after year, is often used to sigh that time flies, and it is another year in a blink of an eye.

Source: Ancient circulation in Qing Dynasty. The word circulation has both the meaning of flow transfer and business change, and the meaning of commodity circulation and rotation. This refers to the flow and transfer of time. Change means exchange and replacement.

In the Tang Dynasty, Kong Ying Da commented on this: "In the four seasons, take turns to see it." In the vernacular, Confucius in the Tang Dynasty noticed that twinkling stars appeared alternately in the four seasons.

Appreciate:

Time goes by bit by bit, and it will be fleeting before you know it, just like the blink of an eye. Time flies, as if yesterday was a cold winter with layers of snowflakes, and today is a hot summer day. Time flies, and we must cherish it. The rain and dew are clear and diligent.

Similar synonyms are:

1, in case of fleeting time, pronounced as sì shuǐ liú nián n.

Meaning: fleeting time: time. Describe that time is gone forever. The Peony Pavilion by the ancestors of Tang Ming Dynasty, the tenth: As beautiful as flowers for you, like water flowing for years. It means that you are like that charming flower, as beautiful as water.

2. the sun and the moon fly like a shuttle, pronounced rì yuè rú suō not not not.

It means that the sun and the moon fly like a shuttle, describing how time flies. Song Zhao's "Backstreet Record" Volume II: "Weaving Wu and Japan, going back and forth like a shuttle." Weaving is like a tool for drawing weft when weaving. The sun and the moon come and go like a shuttle.