Interaction is the key to teaching language for communication.

交互性又是交际性语言教学的关键所在。

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Secondly, on teacher-student interaction in the classroom teaching the existing problems.

其次，阐述课堂教学中师生互动存在的问题。

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Moreover, this teaching pattern can substantially improve female students' question awareness, and this shows the interaction between the teaching pattern and gender.

并且此教学模式可以明显地提高女生的问题意识，即教学模式和性别之间存在着交互作用。

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MIT's Nexi robot has been teaching us about social interaction for years, and has even done a stint with the US Navy.

ENGADGET: Nexi robot helps Northeastern University track effects of shifty body language (video)