Lǎo / shī / jiě / shì / shuō / zhōu / sān / jìng / yī / zhǐ / shì / zǎo / qī / shù / xué / zhōng / de / jìn / sì / shuō / fǎ

老师解释说，“周三径一”只是早期数学中的近似说法。

The teacher explained that “周三径一” was only an approximation used in early mathematics.