lǎo shī / bǎ / fù zá de / mí tí / shè jì chéng / jǐ gè / bù zhòu / ràng / xué shēng / fēn zǔ / hé zuò / jiě mí

老师把复杂的谜题设计成几个步骤，让学生分组合作解谜。

The teacher divided a complex puzzle into several steps so that the students could work in groups to solve it.