pairwork       
noun [ U ]  education specialized uk/ˈpeə.wɜːk/ us/ˈper.wɝːk/
 结对完成的工作
work that is done by two people working together when they are learning something, such as a language
  Both pairwork and groupwork have an important place in ESL classes. 在英语学习课程中,结对作业和小组作业都占很重要的位置。