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来源:雅诚德英语网
Long-ago builders could have attached wooden poles to the stones and rolled then across the sand, the scientists say.
科学家们说,很久以前的建筑工人也许是在石头上绑上木杆,然后在沙子上滚动。
Long-ago builders could have attached wooden poles to the stones and rolled then across the sand, the scientists say.
科学家们说,很久以前的建筑工人也许是在石头上绑上木杆,然后在沙子上滚动。