I heard about a high school in Chicago where students had to pass a certain number of courses to graduate, and if they didn't pass a course, they got the grade "Not Yet."
我听说，在芝加哥有一所高中， 那儿的学生毕业前要通过一系列课程， 如果某一门课没有通过， 成绩就是「暂未通过」。