Yang Zhang yettwasken-d ɣef usmel Toy Design Winners s wayen i d-yewwi: 1 n ufeṣṣel i yewwin arraz, deg taɣulin: Afeṣṣel n Tirurarin, Uraren d Ifarisen n Ummerwas.
Ifeṣṣilen sɣur Yang Zhang
Afeṣṣel n Tirurarin, Uraren d Ifarisen n Ummerwas The pipe circuit Building Toy sɣur Yang Zhang
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