名词
中文翻译：替代班级
同义词：
['substitute class', 'alternative group', 'backup class']
例句：
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1. The school offers a variety of alternative classes to accommodate different learning styles.
学校提供各种替代课程，以适应不同的学习风格。
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2. She enrolled in an alternative class to improve her English skills.
她报名参加了一个替代课程来提高她的英语技能。
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3. The teacher suggested that students take a break and attend an alternative class instead.
老师建议学生们休息一下，参加一个替代课程。