1. Time is very precious, like precious gold.

2. Time flies by like an arrow leaving a string.

3. Time passes quietly, like sand in an hourglass.

4. Time flies by, like a shooting star in the sky.

5. Time passes gently, like the ticking of a clock.

6. Time goes by and never comes back, like a rushing river.

7. Time heals everything, like the warm hands of a doctor.

8. Time dilutes the traces of time, like a clear spring.

9. Time passes silently, like a silent hourglass.

10. Time reflects the various conditions of the world, like a bronze mirror of vicissitudes of life. :

A metaphor is an analogy, using simple, concrete, and vivid things to replace abstract and difficult-to-understand things.

The basic structure of a metaphorical sentence is divided into three parts: the ontology (the thing being compared), the metaphor (the word expressing the metaphorical relationship) and the metaphor (the thing being compared). Metaphors are divided into simile, metaphor and metonymy.

Metaphors make it easier for people to understand, can turn abstraction into concreteness, and profoundness into simplicity, and can also make people associate and imagine. Metaphorical sentences often contain metaphorical words, such as "like...", "like...", "like", "is", "becomes", "as if", "true like", etc. Metaphors can make an article more vivid, vivid, and concrete.