2) 教授和学生关系：学生问老师问题;学生寻求老师的帮助;学生询问老师对作业的意见;老师要求学生对论文打印错误等
do research for;
semester;
work as one's teaching assistant;
trouble a professor;
may I ask you a few questions;
I have a class at ten;
come in one's office hours;
finish reading one's research report;
revise (improve) some parts of it;
get it published;
read some papers he recommended;
correct all the typing errors in a paper;
read it through again;
check the paper for typing errors