1, the fastest and the slowest, the longest and the shortest, the most ordinary and the most precious, is the most easily overlooked in the world, and the most regrettable thing is time.
2. Swallows have gone, and when they come back, the willows are withered, when they are greener, the peach blossoms are withered, and when they bloom again. But, smart, tell me, why are our days gone forever?
I think today is the most precious thing in the world, and today is the easiest to lose. Because it is the easiest to lose, it is more precious.
4. Time flies and the light is fleeting. Looking back, this year has passed, and all the bitterness is sweet. The night is dim, I have no sleep, listening to the spring talk. Every day is a new one, and I am no longer idle, looking forward to the stars full of moonlight.
Time is the eternal movement of matter, and it is the continuity and sequence of change, including two concepts: time and time period. Time is a parameter used by human beings to describe the process of material movement or the occurrence of events. The determination of time depends on the law of material circulation that is not affected by the outside world.
The time measurement system based on the earth's rotation is called universal time system. Time measurement of time, day, month, year and century belongs to the calendar category in astronomy. Time is one of the seven basic physical quantities in physics, and the symbol is T. In the International System of Units (SI), the basic unit of time is seconds, and the symbol is S.