batch         
noun [ C ] uk/bætʃ/ us/bætʃ/
 一批,一组
a group of things or people dealt with at the same time or considered similar in type
  The cook brought in a fresh batch of homemade cupcakes. 那位厨师带来了一炉刚刚烤好的自制蛋糕。 
 We looked at the job applications in two batches. 我们把那些求职申请分两批浏览了一遍。 
  Indian English一届学生 
a group of students who are taught together at school, college, or university