tàn / xiǎn / duì / zài / yán / xué / zhōng / fā / xiàn / le / bǎo / cún / wán / hǎo / de / gǔ / dài / bì / huà

探险队在岩穴中发现了保存完好的古代壁画。

The expedition team discovered well-preserved ancient murals in the grotto.