英语语法分析

Bulldozers piled up huge mounds of dirt.

推土机堆起了一个个大土堆。

《柯林斯英汉双解大词典》

Pits and mounds have significantly different soil properties than other areas in the forest.

与森林中的其他地区相比，坑和土丘的土壤性质有显著的不同。

Archaeologists know that mounds such as these are the kinds of geological features that indicate the presence of ancient settlements.

考古学家知道，像这样的土堆是能表明有古代定居点存在的地质特征。