云是由千万滴小水珠组成的,是用be made of 还是用 be made from?能看出原材料吗?
问题描述:
云是由千万滴小水珠组成的,是用be made of 还是用 be made from?能看出原材料吗?
答
be made of
云是由千万滴小水珠组成的,是用be made of 还是用 be made from?能看出原材料吗?
be made of