| Front | Starting around 7000 B.C., and for the next four thousand years, much of the Northern Hemisphere experienced temperatures warmer than at present. |
|---|---|
| Back | 大约从公元前七千年开始，在四千年当中，北半球的温度比现在高。 |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Henry ford sought financial backing making cars notion
Previous card: Annoying weeds goldenrods crowd hardy plants act hosts
Up to card list: 雅思100句学习7000单词