英语谚语是英语文化中宝贵的语言遗产，它们简洁而富有哲理，常被用于日常交流中。以下是一些初中阶段常用的英语谚语，每个谚语都附有详细解释和例句，帮助读者更好地理解和运用。
1. A stitch in time saves nine.
解释：及时补救，省得费时费力。 例句：If you fix the leaky faucet now, it will save you a lot of trouble later.
2. Actions speak louder than words.
解释：行动胜于言语。 例句：He talks a lot about helping others, but it’s his actions that really show his kindness.
3. All that glitters is not gold.
解释：闪光的不一定是金子。 例句：That expensive car may look great, but it’s not necessarily the best choice for you.
4. Better late than never.
解释：迟做总比不做好。 例句：I’m late for the meeting, but it’s better late than never.
5. Birds of a feather flock together.
解释：物以类聚，人以群分。 例句：They are both quiet and studious, so it’s no surprise they’re good friends.
6. Don’t count your chickens before they hatch.
解释：不要过早乐观。 例句：She’s planning her wedding already, but don’t count your chickens before they hatch.
7. Every cloud has a silver lining.
解释：黑暗中总有光明。 例句：Even though I failed the exam, I learned a lot from the experience.
8. Experience is the best teacher.
解释：经验是最好的老师。 例句：I’ve learned more from my mistakes than from my successes.
9. First impressions are the last impressions.
解释：第一印象最深刻。 例句：He made a good first impression, and I still remember it.
10. Give a dog a bad name and hang him.
解释：一旦给人贴上标签，就很难改变。 例句：She was labeled as a troublemaker, and it was hard for her to change that perception.
11. Haste makes waste.
解释：欲速则不达。 例句：Don’t rush through your homework; it’s better to do it well than quickly.
12. If it’s not broken, don’t fix it.
解释：如果没问题，就别去修理。 例句：The old computer still works fine, so there’s no need to buy a new one.
13. It’s an ill wind that blows nobody good.
解释：没有风会吹得所有人都不好。 例句：Even though the storm caused a lot of damage, it also brought rain that helped the crops grow.
14. Keep an eye on something.
解释：留意某事。 例句：Keep an eye on your backpack; it might be stolen.
15. Knowledge is power.
解释：知识就是力量。 例句：Studying hard will give you the power to achieve your dreams.
16. Look before you leap.
解释：三思而后行。 例句：Don’t jump into the river without checking the water first.
17. Make hay while the sun shines.
解释：趁热打铁。 例句：We should take advantage of the good weather to finish our garden work.
18. No pain, no gain.
解释：不劳无获。 例句：I’ve trained hard for the marathon, and I know it won’t be easy, but no pain, no gain.
19. Practice makes perfect.
解释：熟能生巧。 例句：If you want to become a good musician, you need to practice every day.
20. Rome was not built in a day.
解释：伟业非一日之功。 例句：We can’t expect to finish all our projects in one day; we need to take it step by step.
由于篇幅限制，这里仅展示了20个谚语及其详解和例句。完整的500个谚语及其详细解释和例句可以进一步扩展，每个谚语都旨在帮助读者深入理解其含义，并在实际交流中灵活运用。