The volunteers were divided into two groups to take part in different farm work.
志愿者被分成两组，做不同的农活。
They were divided into two groups at random.
对照组常规治疗；
We divided into two groups; there were five students in each group.
我们分成两组；每组五个学生。
In a separate experiment, 140 of the children were divided into two groups.
在单独实验中，140个孩子分为两组。
The class divided into two groups to talk about different parts of the subject.
班级分成两组讨论这个问题的不同部分。
The people were divided into nine groups of about two hundred people each.
受试者被分成九组，每组大约两百人。
The people were divided into nine groups of about two hundred people each.
受试者被分成九组，每组大约两百人。
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