lǎo / shī / jiě / shì / shuō / jīn / què / shì / gǔ / shī / zhōng / duì / huáng / gōng / de / yǎ / chēng

老师解释说，金阙是古诗中对皇宫的雅称。

The teacher explained that 金阙 is an elegant term for the imperial palace in classical poetry.