第三課 生活處處是科學

 

 


 

 


 


 

 
Add the following new words one by one affixed to the following text box.
請每次複製一個生字到下面長形小框,按"enter"鍵,即可練習該生字之筆劃。

施寧棄者栽
恐跡撈執滅
浮律瞌免恨
宁弃迹捞执灭

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