"You" and "you" mean adding a zero to an integer. Numerals in ancient Chinese are different from numerals in modern Chinese in some places. When there is a number after an integer of more than ten digits, add "you" (or "you", which are connected), which is similar to "zero" in modern Chinese.

For example, "203" is 203. The difference is that modern Chinese does not add zero between ten digits and single digits, while classical Chinese often adds "you" between ten digits and single digits, especially age. For example, Confucius said, "Nine times out of ten I am determined to learn", and nine times out of ten I am fifteen. When reading classical Chinese, you should understand this situation, for example, there are five in seventy and seven in twenty.

Seventy years old, you can call it seventy years old. Du Fu, a great poet in the Tang Dynasty, wrote in his Poems on Caotang and Two Poems on Qujiang: "Wine and debt together, life is seventy years old." Du Fu lamented how short life is and how few people can live to be 70.

Tang Bohu, a famous painter in Ming Dynasty, was lucky enough to live a "quaint" life. After reading this poem, he wrote a sentence with emotion: "A man is seventy years old and rare, and I am seventy years old. The first ten years are young, and the last ten years are old. There are only fifty years in the middle, and half of them passed overnight. It's only been 25 years, and how much you've suffered. " Although Tang Bohu lived for a long time, he still lamented that life was short.

Due to the backwardness of ancient medicine, war and famine, not many ordinary people live to 70 years old, and even high-ranking officials and dignitaries may not live to 70 years old, which means it is rare.

So the ancients called 70 years old ancient. People living in ancient times are: the author of Romance of the Three Kingdoms, Wu Cheng'en, the author of Luo Guanzhong and The Journey to the West, Feng Menglong, the author of Yu's Inscriptions, Yan and San Yan, and famous painters.

With the improvement of living standards, people who have experienced the ancients can be seen everywhere. The ancients no longer have any practical significance, but people still respect the wisdom and culture of the ancients and still give them rare significance since ancient times.

In fact, a meaningful life, don't think about how old you can live, and how old you are at seventy. If you can live, be happy and be valuable, you should cherish gratitude and make your life more meaningful.