Yán / jiū / gǔ / dài / zì / xíng / shí / lǎo / shī / ràng / wǒ / men / chá / yuè / Lóng / kān / Shǒu / jiàn

研究古代字形时，老师让我们查阅《龙龛手鉴》。

When studying ancient character forms, the teacher asked us to consult Longkan Shoujian.