pinnacle: the most successful point; the culmination. a high, pointed piece of rock      


fumble: do or handle something clumsily. If you’re a football fan you know all about the agony of the fumble...

Eurasian Steppe 欧亚大草原

Eurasian steppe: the great steppe

Golden Horde: The Barbarian Mongols

golden horde 金帐汗国

Parchment 羊皮纸

Parchment is what people used to write on before paper was common, hundreds of years ago. Instead of being made...

paperback vs hardcover

Softcover vs Hardcover (Paperback vs Hardback)

paperback: cheaper hardback: