Research on self-regulated learning abroad has a very long history and can be traced back to ancient Greece.
自主学习研究由来已久，国外的自主学习研究可以追溯到古希腊。
The study of "task-based learning" abroad has a history of over twenty years.
任务型学习的研究在国外已有了二十多年的历史。
The study of "task-based learning" abroad has a history of over twenty years.
任务型学习的研究在国外已有了二十多年的历史。
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