Why are there differences between the senior and the senior in China University? Which schools are brothers and sisters and which schools are brothers and sisters? How is it divided?
In our major, an unwritten title is that seniors in undergraduate courses are called senior sisters, and seniors or staff in graduate schools, especially those in the same laboratory, are called senior sisters. In fact, there is no difference between the original intention of these two groups of words, except that senior and senior are local appellations in China, while senior and senior are Japanese appellations. I think it's okay to mix and eat at this stage.