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Discussion > Non ( 三角形的內角與外角)

Cool~

Sound good, material is good, I like its interaction function. Good work.

Thank you for your message.

And I'll try my best to create more and more the good teaching materials for all the students.

Hope to meet you here frequently.

挖~
 
 
隴西英文~~~~~~~~
 
 
喂!巴太太挖西凱莉喇~
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