For some students, including Wang Ling, 21, in Sun Yat-sen University, this practice has caused headaches.
对于包括21岁的中山大学学生王玲在内的一些学生来说，这种做法令人头疼。
2
Fiorina is now an adviser to Republican Sen. John McCain in his bid for the White House.
Fiorina现在是共和党参议员麦凯恩(John Mc Cain)竞选进入白宫的一名顾问。
3
The study was carried out by Lawrence Lam of the School of Medicine in Sydney, Australia, and Peng Ziwen of the Ministry of Education and Sun Yat-sen University in Guangzhou, China.