| 单词 | river |
| 释义 | river n. 1. a copious natural stream of water flowing in a channel to the sea or a lake etc. 2. a copious flow (a river of lava; rivers of blood). 3. (attrib.) (in the names of animals, plants, etc.) living in or associated with the river. Phrases and idioms river blindness a tropical disease of the skin caused by a parasitic worm, the larvae of which can migrate into the eye and cause blindness. river capture the diversion of the upper headwaters of a mountain stream into a more powerful one. sell down the river colloq. betray or let down. Derivatives rivered adj. (also in comb.). riverless adj. Etymology: ME f. AF river, rivere, OF riviere river or river-bank ult. f. L riparius f. ripa bank |
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