《卖油翁》是明代文学家冯梦龙所写的一篇短篇小说，讲述了一个老人卖油为生，遇到了一些意外，最终得到了好处的故事。以下是原文、翻译和注释。

原文：

卖油翁，其人年约七旬，颜色黑里透黄，瘦削精悍，眼神炯炯，似能透人心。每逢斜月三星之夜，必至城隍庙前小店油铺，要一斗米油，一柴米。小店伙计，姓白名宣，外表粗豪，实则心机深沉，他知道卖油翁背后的故事，每每给他斟油时，便故意多斟几升，卖油翁领了米油之后，总要体面地向小店伙计道谢，白宣却总是一言不发，冷漠地看着他离去。

一天，卖油翁来到小店斟油，他看见了一个穿着华丽的年轻人，正手持一枝梨花在店里逛，他不禁多看了年轻人几眼。这时，年轻人发现了卖油翁的目光，不悦地对他说：“老头子，你是不是没见过这么有钱的人啊？”卖油翁笑着说：“不敢，只是觉得这枝梨花很好看。”年轻人听了，便将梨花递给他：“老头子，这枝梨花送给你了。”卖油翁谢过了年轻人，高高兴兴地回家了。

回到家后，卖油翁将梨花插在瓦瓶里，看得十分开心。可是，他发现这梨花居然可以开花结果，开出了一颗梨子。卖油翁想，这是上天给他的好运，便将梨子种下去，没想到这棵梨树生长得非常快，三年之后就结出了一百多个梨子。卖油翁卖掉这些梨子，得到了大量的钱财，从此过上了富裕的生活。

翻译：

The Oil Seller is an old man in his seventies, with a black and yellow complexion and a lean and tough appearance. His eyes are sharp and seem to be able to see into people's hearts. Every time on the night of the three slanting moons and three stars, he would go to the oil shop in front of the City God Temple and ask for a bushel of rice oil and a bundle of firewood. The shop assistant, named Bai Xuan, looks rough and bold on the surface, but is actually very scheming. He knows the story behind the Oil Seller and always intentionally gives him a few extra liters of oil. After receiving the rice oil, the Oil Seller always thanks Bai Xuan politely, but Bai Xuan remains silent and coldly watches him leave.

One day, the Oil Seller came to the shop to buy oil and saw a young man in gorgeous clothes holding a pear blossom branch, strolling in the shop. He couldn't help but take a few more glances at the young man. At this moment, the young man noticed the Oil Seller's gaze and said displeasedly, 'Old man, have you never seen someone so rich before?' The Oil Seller smiled and said, 'No, I just think this pear blossom branch is very beautiful.' The young man handed the pear blossom branch to him and said, 'Old man, this pear blossom branch is for you.' The Oil Seller thanked the young man and happily went home.

After returning home, the Oil Seller put the pear blossom branch in a tile bottle and was very happy to look at it. However, he found that the pear blossom branch could actually bloom and bear fruit, producing a pear. The Oil Seller thought this was a stroke of good luck from heaven, so he planted the pear and unexpectedly the pear tree grew very quickly, producing more than a hundred pears in three years. The Oil Seller sold these pears and became wealthy, living a comfortable life since then.

注释：

1. 卖油翁：一个卖油为生的老人，故事的主角。

2. 斜月三星：农历二十八、二十九、三十日的晚上，月亮和天上的三颗星星位于一个斜线上，被认为是吉祥的日子。

3. 米油：用米磨成的油，又名米油子。

4. 姓白名宣：小店的伙计，实际上很有心计。

5. 梨花：象征着爱情和美好的事物。

6. 一斗米油，一柴米：卖油翁购买米油和柴火的数量。

7. 瓦瓶：用于存放水或酒的瓶子，也可以用来插花。

8. 富裕的生活：卖油翁因为梨子而变得富有，过上了好日子。