"professor, i did the best i could on this test. i really don't think i 1 a zero." "neither do i. but that's the lowest grade i'm allowed to give."
学生:“教授先生,我这次考试已经竭尽全力了。我真的觉得我不应该得零蛋。”
老师:“我也是。但是这已经是我能给的最低分了!”