单词	rimrock
释义	rimrock /ˈrɪmrɒk / noun [mass noun] chiefly North American An outcrop of resistant rock forming a margin to a gravel deposit, especially one forming a cliff at the edge of a plateau: archetypal cowboy terrain—tableland, rimrock, canyons [as modifier]: a gap in the plateau’s rimrock cliffs [count noun]: they stopped for lunch on a rimrock overlooking a stream... The ranch's riding trails head off through open forest toward the Marble Mountain foothills or along rimrock canyon edges with bracing views of Fraser River and the Chilcotin area. As the trio neared the top of the ridge, they found their way blocked by a wall of rimrock. As the mountains pushed up, the river cut deep canyons, the rimrock of which shows 400 million years of erosion.
随便看	planimetrical planimetrically spectrograph spectrographic spectrographical spectrographically spectrography spectroheliograph spectrohelioscope spectrolite spectrometer spectrometric spectrometry spectrophotometer spectrophotometric spectrophotometrically spectrophotometry spectroscope spectroscopic spectroscopical spectroscopically spectroscopist spectroscopy spectrum spectrum analyser

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