In a word, Tsinghua's style of study, Peking University's Khan (Korea), two foreign girls, North X's rice.
The first official statement is the style of study. Only the first two sentences begin. Han was later spoofed by students and turned into a man.
It's about boys from Peking University, and girls from other schools are better. The last sentence is spelled out. Mainly blow your own school.
Anything that can get by in the canteen can be a big T, but this is an old saying ten years ago. I don't know how the canteen is now.
I can tell you responsibly that A is big = Tsinghua is definitely right. This is to ask the tortoise himself.