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| canyon; gores; gorge; gulch; ravine; chasm; gully | |||
| gulch (US); crevice; beam; bar; joist; baulk; girder | |||
| gap | |||
| box canyon; coulee | |||
| chine; defile | |||
| abyss | |||
| canyon A long deep, relatively narrow steep-sided valley confined between lofty and precipitous walls in a plateau or mountainous area, often with a stream at the bottom; similar to, but largest than, a gorge. It is characteristic of an arid or semiarid area (such as western U.S) where stream downcutting greatly exceeds weathering | |||
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| on the ravine edge | |||
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| canyons; gorges; gulches; ravines | |||
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| gill | |||
| Schlucht: 17 短语, 5 学科 |
| 一般 | 3 |
| 农业 | 8 |
| 改善 | 3 |
| 环境 | 2 |
| 自然资源和野生动物保护 | 1 |