pàn / duàn / xún / huán / xiǎo / shù / de / xún / huán / jié / shí / yào / xiān / zhǎo / chū / chóng / fù / chū / xiàn / de / shù / zì

判断循环小数的循环节时，要先找出重复出现的数字。

When identifying the recurring section of a recurring decimal, first find the digits that repeat.