用“envelop”造句大全，envelop造句
Pleasesticktwostampsontheenvelop.Stickastampontheenvelop.Andinourmailarrivedanenvelopwithoutareturnaddress.IgetnervouswhenIseetheenvelopfromschoolinthemail.Theshapeoftheenvelopsuggestedthatthelettermi...
用“envelop in”造句大全，envelop in造句
Toenvelopinorasifinacocoon,asforprotectionfromaharshorunfriendlyenvironment.Thisarticlehasdescribedthematrixmatchingmethodaswellasitsapplicationinthefiniteelementoftheinterfacemechanicalheatstressonth...