grouping

• We observe three sunspot groups on the disc .
  在日面上观测到三个黑子群。
• He could not handle either group effectively .
  他对于两个集团都无计可施。
• Kinship groups were very important .
  血统组织占有很重要的地位。
• My group despises violence of any kind .
  我的组织鄙视任何形式的暴力行动。
• They formed a group for beginners in english .
  他们组成了一个英语初级班。
• The first group was given 5 doses at weekly intervals .
  第一组每周给5剂。
• We 'd better go in a group , not individually .
  最好集体去，不要单个儿去。
• He is the mainstay of our theatre group .
  他是我们剧组的台柱。
• Some groups are circulating petitions .
  一些团体在散发请愿书。