be located in / situated | 坐落于/位于 |
with an average altitude of 100 meters | 海拔 |
covers an area of 2.3 millions square kilometers | 面积 |
with a total area of about 5000 square kilometers | 面积 |
be covered by | 覆盖 |
a thickness of 50-80 meters | 厚度 |
one of the birthplace of | 发源地之一 |
as early as 500 years age | 早在500年前 |
stretch across | 横跨 |
hava a long history with beautiful scenery and pleasant climate | 历史悠久,风景秀丽,气候宜人 |
a superior ecological environment | 优越的生态环境 |
a wide variety of living creatures | 生物多样性 |
be known as | 被誉为 |
mineral resources | 矿资源 |
a variety of | 多种 |
adequate | 重组 |
favorable conditions | 有利条件 |
be inhabited by | 居住 |
rich ethnic culture | 丰富的民族文化 |
have been made into | 使成为 |
popular tourist destinations | 旅游目的地 |
tourists | n.游客 |
attract | v.吸引 |
demestic and foreign | 国内外 |
be rich in natural resources,beautiful scenery | |
rare wild animals | 稀有动物 |
the source of | ....的源头 |
be vital to | 至关重要 |
global esosystem | 全球生态系统 |
due to | 由于 |
at an accelerating rate | 正在加速 |
grassland | 草地 |
plateau | 平原 |
grassland coverage | 草地覆盖率 |
endangered species | 濒危物种 |
with numerous rivers | 数不清的河流 |
deep and steep | 又深又陡 |
canyon | 峡谷 |
fertile soil | 土壤肥沃 |
be conductive to | 有利于 |
the growth of crops | 作物生长 |
biological and cultural diversity | 生物、文化多样性 |
an area with... | ....的地区 |
the origin of ancient humans | 古人类起源的重要地区 |
ethnic minorities | 少数民族 |
retain | 保留 |
the concentrated loess distribution | huagn'tu |
implementation | |