籍 Top Notch 3B - 第 10 单元 - 第 3 课

originating from or created by nature, not made or caused by humans

an important or distinctive aspect of something

a vast area of land that is covered with trees and shrubs

a tropical forest with many plants growing densely

a low area of land between mountains or hills, often with a river flowing through it

a valley that is deep and has very steep sides, through which a river is flowing usually

a piece of land surrounded by water

a large mass of ice that forms over long periods of time, especially in polar regions or high mountains

incredibly impressive or beautiful, often leaving one feeling amazed

extremely impressive and beautiful, often evoking awe or excitement

very unusual, special, or surprising

(of an area) having a lot of mountains

having many hills

(of a surface) continuing in a straight line with no raised or low parts

lacking moisture or liquid

(of land or a climate) very dry because of not having enough or any rain

(of vegetation) growing densely and looking strong and healthy

having the color of fresh grass or most plant leaves