单词	ravine
释义	ravineravine /rəˈvin/ noun [countable] Etymology ETYMOLOGYravine Origin: 1400-1500 Old French violent rushing, ravine, from Latin rapina; ➔ RAPINE earth science, geography a narrow valley with steep sides, formed by running water SYN gorge
随便看	extenuating exterior exterior angle exterminate extermination exterminator extern external external fertilization externalization externalize externally externals extinct extinction extinguish extinguisher extirpate extol extort extortion extortionate extortionately extortionist extra-

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