mountain
a very tall and large natural structure that looks like a huge hill with a pointed top that is often covered in snow

山, 高山

[名词]
hill
a naturally raised area of land that is higher than the land around it, often with a round shape

山丘, 小山

[名词]
sea
the salt water that covers most of the earth’s surface and surrounds its continents and islands

海

[名词]
shore
the area of land where the land meets a body of water such as an ocean, sea, lake, or river

海岸, 岸边

[名词]
river
a natural and continuous stream of water flowing on the land to the sea, a lake, or another river

河流, 小溪

[名词]
cave
a hole or chamber formed underground naturally by rocks gradually breaking down over time

洞穴, 穴

[名词]

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