中学天文网课 Online astronomy class for secondary school
2021-04-22
Video demo on Moon shooting by mobile phone, for secondary school online astronomy class.
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资优教育学苑天文活动 Hong Kong Academy of Gifted Education astronomy programs
2019-07-15
我们刚週六在资优教育学苑有几个天文讲座及活动，学生反应十分理想，有近300人参与。
We had ...
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