Tests were carried out by teachers on the entire cohort of eight to nine year-olds in their third year at primary school.测试是由老师在小学三年级所有8岁到9岁的学生中进行的。

She speaks for a whole cohort of young Japanese writers.她是所有日本年轻作家的代言人。

Drake and his cohorts were not pleased with my appointment.德雷克那一帮人对我的任命很不满。