grouping

• All three groups have many features in common .
  整个三个组有许多共同的特点。
• What is used when the group is not so limited ?
  若组并非那么有限，要用什么？
• These things may be grouped into several divisions .
  这些东西可以分成好几类。
• In other words it has a large automorphism group .
  换言之，它有大的自同构群。
• Groups require stroking and nurture and attention .
  小组需要安抚、培育和关心。
• The groups of the solvable equations are commutative .
  可解方程的群都是交换群。
• He is one of the most effective writers of our group .
  他是我们组的笔杆子之一。
• Do you teach your students singly or in groups ?
  你教学生是个别地教还是按组教？
• The group breaks up, leaving higgins isolated .
  人群散开，留下息金斯一人在那里。
• The close members of the group are geologists .
  机构中至关重要的成员是地质学家。