| 释义 |
复数：rills 现在分词：rilling 过去分词：rilled 1. | 细沟a shallow channel cut by water flowing over rock or soil |
n. | 1. a little stream or brook 2. a small channel cut in soil 3. a long narrow valley on the Moon's surface 4. an artificial channel, often a straight and narrow one, along which water is made to flow, forming a water feature in a garden 1. a little stream or brook 2. a small channel cut in soil 3. a long narrow valley on the Moon's surface 4. an artificial channel, often a straight and narrow one, along which water is made to flow, forming a water feature in a garden | v. | 1. to form small channels in a ploughed field as a result of the runoff of rainwater |
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