the distance of a point east or west of the meridian at Greenwich that is measured in degrees
经度
each of the two parallel and imaginary lines around the earth that is 23°26ʹ south or north of the equator
热带
associated with or characteristic of the tropics, regions of the Earth near the equator known for their warm climate and lush vegetation
热带
a hypothetical line around the Earth that divides it into Northern and Southern hemispheres
赤道
a large body of land that is partially surrounded by water but is attached to a larger area of land
半岛
the most northern or most southern points of the earth that are joined by its axis of rotation
地理极点
the rise and fall of the sea level, which happens regularly, as a result of the attraction of the sun and moon
潮
a substance from the inner layers of the earth which is erupted out of a volcanic mountain
岩浆
a large mass of ice that forms over long periods of time, especially in polar regions or high mountains
冰川
a valley that is deep and has very steep sides, through which a river is flowing usually
峡谷
an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially
池塘