It's a day and a week
As a Chinese idiom, Pinyin is j ì ngy ī zh ō us ā n, which means that the ratio of the diameter of a circle to the circumference of a circle is 1:3. From Zhoubi Suanjing.
Idiom explanation
Diameter: the diameter of a circle; circumference: the circumference of a circle.
The origin of Idioms
"Zhou Bi Suan Jing" Volume I: "Pythagorean circle square map." Zhao Shuang, Han Dynasty, noted: "the diameter of a circle is one but three."
Analysis of Idioms
It's quite different
Idiom usage
There is a big gap between them. Even if you find a little light, ~, you can see the endless darkness around you more clearly. Lu Xun's preface to two episodes of qijieting's Essays
Chinese PinYin : jìng yī zhōu sān
It's a day and a week
regulate the appetite according to the dishes. kàn cài chī fàn
Pass five passes and cut six generals. guò wǔ guān,zhǎn liù jiàng
an inch of silk and half a grain of rice -- a little bit. cùn sī bàn sù