a field of science that studies the structure of the earth and its history

地质学, 地球科学
one of the two halves of the Earth, separated by the equator or a meridian

半球, 半球体
the distance between an object or point and sea level

高度
the distance of a point east or west of the meridian at Greenwich that is measured in degrees

经度, 子午线
each of the two parallel and imaginary lines around the earth that is 23°26ʹ south or north of the equator

回归线, 热带圈
associated with or characteristic of the tropics, regions of the Earth near the equator known for their warm climate and lush vegetation

热带的, 赤道的
the line where the sky and earth seem to come in contact with each other

地平线
a hypothetical line around the Earth that divides it into Northern and Southern hemispheres

赤道, 赤道线
a large body of land that is partially surrounded by water but is attached to a larger area of land

半岛, 几乎岛
land with mountains or hills

高地, 山区
located away from the coast

内陆的, 远离海岸的
having many hills

多山的, 崎岖的
an area of land, particularly in reference to its physical or natural features

地形, 风景
the most northern or most southern points of the earth that are joined by its axis of rotation

极, 北极/南极
a deep narrow valley with steep sides, usually worn by a stream

峡谷, 深谷
a smaller part of a river that is separated from the main and larger part

支流, 分流
the flow or movement of water or a liquid in a specific direction

水流, 潮流
the rise and fall of the sea level, which happens regularly, as a result of the attraction of the sun and moon

潮汐
an area of sea that is partly surrounded by land, with a narrow opening

海湾, 湾
related to or situated along the coast, the area where land meets the sea

沿海的, 海岸的
the round top of a volcano

火山口
a substance from the inner layers of the earth which is erupted out of a volcanic mountain

熔岩
a very large floating piece of ice

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

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

峡谷, 深谷
a natural underwater structure formed by coral

珊瑚礁, 珊瑚礁群
an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially

池塘, 水池
related to the sea and the different life forms that exist there

海洋的
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