我们的系主任告诉我，如果除了每门课的指定作业之外，我能够做独立的实地调查，那么完成这些调查就可以算作上了中级水平的课程。
My chairperson told me that if I did independent field research in addition to the assigned work in each course; they would count as intermediate-level courses.
当然，不应该给学生布置无法独立完成或没有昂贵设备就无法完成的作业。
Certainly, no homework should be assigned that students cannot complete on their own or that they cannot do without expensive equipment.
尽管你已经让他们做了作业，但要是给他们太多帮助，或是检查答案过于仔细，可能会让他们懒于独立完成作业。
Though you've got to get them to do homework, by helping too much, or even examining answers too carefully, you may keep them from doing it by themselves.
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