Indian SignLanguage,PISL;法語:Langue des Signes Indienne des Plaines;西班牙語:Lenguaje de Signos Indio de las Llanuras),又称平原手语、平原手势谈话(Plains Sign Talk)或第一民族手语(First
"Roundup: Portuguese-Speaking African Countries embrace new era" (页面存档备份,存于互联网档案馆). English People Daily. Equatorial Guinea Adds Portuguese as the Country's