paraphrasing求帮忙能帮忙paraphrasing下吗?1.Of the more than 1000 bic
paraphrasing求帮忙
能帮忙paraphrasing下吗?
1.Of the more than 1000 bicycling deaths each year,three- fourths are coused by head injuries.Half of those killed are school-age children.one study concluded that wearing a bike helmet canreduce the risk of head injury by 85 percent.In an accident,a bike helmet absorbs the shock and cushions the head.