楔形文字是苏美尔人的一大发明。
苏美尔人怎样用一只手数到12，用两只手数到60 ？
How did the Sumerians count to 12 on one hand and to 60 on two?
尽管这些成就，学者们对于苏美尔人的生活知道的更少，比起他们爱好什么而言。
Despite these achievements, scholars know much less about Sumerian life than they would like.
尽管这些成就，学者们对于苏美尔人的生活知道的更少，比起他们爱好什么而言。
Despite these achievements, scholars know much less about Sumerian life than they would like.
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