The district hydrogeology conditions along the routes of a road project are different, therefore in order to use local materials, many kinds of materials were adopted for roadbed filling.
2
我建议把那些洞填回去，再挖新的。
I advised to fill those holes back and dig new ones.
3
人们向坑里填进未分类的垃圾，然后再挖更多的坑，所以垃圾就不见了。
They filled the pits with unsorted garbage, then dug more pits and so it has gone.
点击反馈