The professor assigned a directed study project to help students delve deeper into the topic.
教授布置了一个有指导学习项目，帮助学生更深入地研究这个主题。
Directed study allows students to work one-on-one with a mentor to develop their research skills.
有指导学习使学生能够与导师一对一合作，发展他们的研究技能。