例句
1
less durable rocks were gradually worn away to form valleys
2
the perdurable granite of the ancient Appalachian spine of the continent
例句
2 / 2
1
less durable rocks were gradually worn away to form valleys
2
the perdurable granite of the ancient Appalachian spine of the continent
有帮助吗？
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
