lǎo / shī / yòng / tài / jí / tú / shuō / míng / yīn / yáng / xiāng / hù / zhuǎn / huà / de / dào / lǐ

老师用太极图说明阴阳相互转化的道理。

The teacher used a yin-yang diagram to explain how yin and yang transform into each other.