eduson ------- many things in his lifetime,all his ------ were very important.〔invent〕

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eduson ------- many things in his lifetime,all his ------ were very important.〔invent〕
eduson ------- many things in his lifetime,all his ------ were very important.〔invent〕

eduson ------- many things in his lifetime,all his ------ were very important.〔invent〕
invented
inventions