Essay.
Qiong Tie Chou is an engineering man. To put it simply, when others are playing DotA, he is also playing DotA; when others are hacking sentiments, he is programming; when others open a room for the night, he is writing experimental reports all night long.
Gao Shuaifu is a business man. When others were playing DotA, he used Mac to surf the Internet at Starbucks; when others were studying in the self-study classroom, he charged his iPhone in the library; when others were catching up on homework all night, he drove home and went to sleep.