【简答题】E—schoolbags Is your schoolbag too heavy to carry? The e-schoolbag will help you. It is said that e-schoolbags are going to be brought into use in Chinese middle schools soon. Heavy schoolbags have be...
【简答题】Is your schoolbag too heavy? The e-schoolbag will help you. It is said that e-schoolbags are going to be brought into 43 in Chinese middle schools soon. Heavy schoolbags have been a serious 44 for a l...