名词
中文翻译：班级抽样
同义词：
['sample class', 'sample selection']
例句：
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1. In this study, we used a random sample of students to gather data.
在这项研究中，我们使用了随机抽取的学生来收集数据。
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2. The researcher conducted a class sampling to understand the learning environment in different classrooms.
研究者进行了班级抽样，以了解不同教室的学习环境。
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3. The teacher asked for volunteers to participate in the class sampling activity.
老师要求志愿者参与班级抽样活动。