I knew it was a demonstration class, and I was a little excited.
我知道这是一个公开课，我有点激动。
Last Night, I had my First English Demonstration Class for students at Xiawu.
昨晚，我在霞梧教室开始了第一堂面向同学们的英语公开课。
I began this class with a demonstration that illustrates two very important facts about language.
我用一段演示来开始今天的课，这段演示阐述了语言非常重要的两个事实。
The music teacher: in my class, demonstration of a song... And students applaud.
音乐老师：我在上课，示范一首歌……唱完后同学们全部鼓掌。
The professor will give a demonstration in class.
教授将在课上进行示范。
Hopefully this conclusion will be of some help to the class demonstration research.
希望这一结论能对进一步开展公开教学研究提供一些依据。
Hopefully this conclusion will be of some help to the class demonstration research.
希望这一结论能对进一步开展公开教学研究提供一些依据。
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