groups of成群的…
disadvantaged groups弱势群体；劣势群体
1.Three armed groups were contending for power.
三个武装集团在争夺权力。
2.Their protests were later taken up by other groups.
其他小组后来也加入了他们抗议的行列。
3.Women's groups denounced sexual discrimination.
妇女组织谴责性别歧视。
4.The two groups of children have quite different characteristics.
这两组儿童具有截然不同的特点。
5.The report highlights the similarity between the two groups.
这份报告强调两组之间的相似性。
6.The two groups must meet on an equal footing.
这两个集团必须以平等地位会谈。
7.Sixteen teams are taking part, divided into four groups.
16支队伍参加，它们被分成4组。
8.These measures are strongly supported by environmental groups.
这些措施得到环境保护组织的大力支持。
9.The leaders of the groups were chosen arbitrarily.
这些团体的领导人是任意挑选的。