《Earth and Sky》旨在向广大英语爱好者介绍瑰丽丰富的世界文化。涉及自然地理、民俗、艺术、经济、文化、民俗及自然地理各个方面,不仅能提高广大英语爱好者的英语水品还能对读者知识面的拓宽具有很大帮助。
Sierra Treeline 山脊树林 Could global warming allow forests to expand into higher elevations than they have reached in more than a thousand years? Learn more about studying alpine treelines -- today on Earth and Sky. JB: This is Earth and Sky. The h...
Black and White黑与白 Sometimes you hear it said that white is a combination of all the colors of the rainbow -- and that black is the absence of color. Find out more about whether black and white are colors -- today on Earth and Sky. JB: This is Ear...