1, meaning: time is like an arrow, the sun and the moon are like a shuttle, and it is as fast as a shuttle on a textile machine. Metaphor time flies quickly.

2. Origin: Time flies, from the famous sentence "Guan He Dao Zhong" by Wei Zhuang, a poet in the Tang Dynasty: But time flies like an arrow, and I don't know if the sky bends like a bow. Time flies, from the Song Dynasty scholar Zhao's "Backstreet Record" Volume II: Weaving Wu and Sun Ye, weaving like a shuttle.

3, sentence making: wasting time, reminds me of a famous saying: the sun and the moon fly like a shuttle, time flies. We should cherish time and race against time. Although people can never run out of time, one small step is good for you!