To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.

为了减轻施工难度，工人们可以用湿粘土或牛的脂肪来润滑道路。

youdao

To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.

为了减轻施工难度，工人们可以用湿粘土或牛的脂肪来润滑道路。

youdao