zài / xíng / tài / xué / kè / shàng / lǎo / shī / yāo / qiú / wǒ / men / zhǎo / chū / měi / gè / dān / cí / de / cí / gàn

在形态学课上，老师要求我们找出每个单词的词干。

In morphology class, the teacher asked us to identify the stem of each word.