lǎo / shī / ràng / wǒ / men / bǐ / jiào / gǔ / shī / hé / bái / huà / shī / de / biǎo / dá / fāng / shì老师让我们比较古诗和白话诗的表达方式。The teacher asked us to compare the expressive styles of classical poetry and vernacular poetry.