词汇	down tarn
释义	down tarn un.经济下落
随便看	theory of music theory of music temperament theory of mutation theory of mutations Theory of mythology theory of naive biology theory of name theory of nationality theory of national liberation movement theory of national question theory of national relationship theory of national subjugation theory of natural human nature theory of naturalism theory of natural numbers theory of natural resource value theory of natural science theory of natural selection Theory of nature theory of nature and destiny theory of naval architecture theory of need gratification Theory of Need Level theory of Needs theory of needs hierarchy