lǎo / shī / yòng / jiǎn / dān / de / xiàn / dài / hàn / yǔ / wèi / zhè / piān / gǔ / wén / xiě / le / jīn / yì。

老师用简单的现代汉语为这篇古文写了今译。

The teacher wrote a modern-language version of this classical text in simple modern Chinese.