例句與造句

1. David Anthony has incorporated recent developments in his " revised steppe theory, " which also supports a steppe origin of the Indo-European languages.
2. David Anthony's " Revised Steppe theory, " derived from Gimutas'pioneering work, placing the Indo-European homeland in the Pontic steppe, more specifically, between the Dniepr ( Ukraine ) and the Ural river ( Russia ), of the Chalcolithic period ( 4th to 5th millennia BCE ), where various related cultures developed.
3. It's difficult to find revised steppe theory in a sentence. 用revised steppe theory造句挺難的