The stars must have formed 10 to 15 billion years ago.这些恒星一定是形成于100到150亿年前。Athletics South Africa was formed by an amalgamation of two organisations.南非体育协会由两个组织合并而成。Specific groups may be formed to address specific issue...
The seven leading bauxite exporters formed the International Bauxite Association.七个主要的铝矾土出口国组成国际铝矾土协会.Stoas lined marketplaces and sanctuaries and formed places of Business and public promenades.柱廊围绕在市场和神庙的四周,是交易和公众散步的场所...