B C C D D B C C A
1(1)didn't cut (2)used to cut
2.How important
3.by stopping cutting
4.How dose
VI个人理解填了
wood
metal
material
cotton
area
B C C D D B C C A
1(1)didn't cut (2)used to cut
2.How important
3.by stopping cutting
4.How dose
VI个人理解填了
wood
metal
material
cotton
area