一五一十 in detail
Explanation
这个成语的意思是，一个一个，十个十个地，把数目点清。比喻叙述事情时，从头到尾，没有遗漏，很详细。
This idiom means to count one by one, ten by ten, to clear the number. It is a metaphor for narrating things from beginning to end without omission, in detail.
Origin Story
明朝末年，有一个叫王小二的书生，他家境贫寒，为了糊口，便在城里开了一家小书铺。有一天，一个穿着华丽衣裳的富家公子来到书铺，指着书架上的一本古籍，说要买。王小二仔细地把书翻了翻，发现这本书是孤本，非常珍贵，便小心地将书的价格报给了富家公子。富家公子听了，顿时勃然大怒，大声说：“你这书铺老板，简直是漫天要价，你想要多少钱？给我报个合理的价格！”王小二也生气了，便把这本古籍的来历，以及它的价值，一五一十地告诉了富家公子。富家公子听了，这才明白王小二并非漫天要价，而是因为这本古籍的确珍贵。于是，他便心悦诚服地付了钱，将这本书买了下来。
During the late Ming Dynasty, there was a poor scholar named Wang Xiaoer who opened a small bookstore in the city to make a living. One day, a rich young man in gorgeous clothes came to the bookstore and pointed to an ancient book on the shelf, saying he wanted to buy it. Wang Xiaoer carefully flipped through the book and found it was a unique copy, very precious, so he carefully quoted the price to the young man. The young man was furious and said loudly, “You bookstore owner, you are simply asking for an outrageous price. How much do you want? Give me a reasonable price!” Wang Xiaoer was also angry and told the young man the origin of the book and its value in detail. The young man then understood that Wang Xiaoer was not asking for an outrageous price, but that the book was indeed precious. So, he paid the price with satisfaction and bought the book.
Usage
这个成语通常用来形容叙述事情时，把经过、细节都说得清清楚楚，没有遗漏。
This idiom is often used to describe narrating things, telling all the details and steps clearly and without omission.
Examples
-
他把事情发生的经过一五一十地向大家讲了一遍。
tā bǎ shì qíng fā shēng de jīng guò yī wǔ yī shí de xiàng dà jiā jiǎng le yī biàn.
He told everyone the story of what happened in full detail.
-
老张把这件事一五一十地告诉了大家。
lǎo zhāng bǎ zhè jiàn shì qíng yī wǔ yī shí de gào sù le dà jiā.
Old Zhang told everyone the story in full detail.
-
请你把事情一五一十地说清楚。
qǐng nǐ bǎ shì qíng yī wǔ yī shí de shuō qīng chǔ.
Please tell me the story in full detail.