Diploma and certificate courses do not normally require the submission of a dissertation.为获得文凭和证书所修的课程通常不需要提交论文。Now we wait for them to turn in their essays.现在我们等他们提交论文。Students should turn their papers in on Thursday.学生们应该周四提交论文。The candidate must submit two bound copies of his or her thesis.投考者必须提交论文的两份装订本。