For most people, one set of strength exercises for major muscle groups performed two to three times a week is sufficient.
对于大多数人来说，一组主要肌群的力量训练只需每周两到三次的训练就足够了。
As a consequence — and especially for use cases that access both APIs — it is recommended (but not required) to assign the same set of people and groups to the two sets of roles.
因此，尤其是对于同时访问两个API的用例，建议您(但不是必需的)向两组角色分配同一组人员和组。
We succeeded in identifying a set of brain regions that distinguished the two groups.
我们成功地确认了把两个群体区别开来的一组脑部区域。
Groups of two may collaborate and hand in a single homework set.
二人小组可协力完成并缴交单一组家庭作业。
The course format requires students to form two distinct groups, each focusing their energies on a different set of tasks.
这样的课程模式要求学生分为两个小组，每个小组专注于各自不同的任务。
The course format requires students to form two distinct groups, each focusing their energies on a different set of tasks.
这样的课程模式要求学生分为两个小组，每个小组专注于各自不同的任务。
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