以下是一些珍惜時間的英文短句：
1. Time is money.
2. Make hay while the sun shines.
3. Seize the day, live today.
4. Time waits for no one.
5. Use time well, waste nothing.
6. The best time was yesterday, the best time is today.
7. Don't put off till tomorrow what should be done today.
8. Never too old to learn.
9. Time flies.
10. Time and tide wait for no man.
希望這些句子能幫助你表達珍惜時間的觀點。