明确各个场景中的交际任务，学会在不同的场景中如何用英语进行有效地沟通交流。
Clear communication tasks in each scene, learn in different scenarios how to communicate effectively in English.
明确各个场景中的交际任务，学会在不同的场景中如何用英语进行有效地沟通交流。
Clear communication tasks in each scene, learn in different scenarios how to communicate effectively in English.
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