GbEng
山自然形成的高出于地面的一块高地,占地广大,通常外侧陡峻且比丘陵要高 A natural elevation of the earth's surface having considerable mass, generally steep sides, and a height greater than that of a hill.
豚脊丘,陡峻的山脊由于对高斜层破碎山背的侵蚀而形成的陡峭的山背 A sharp ridge with steeply sloping sides, produced by erosion of the broken edges of highly tilted strata.