单词	or mournful
释义	or mournful 忧郁；沮丧；悲伤；忧伤
随便看	elementary data item elementary data type elementary decomposed columns elementary diagram elementary diet elementary diffusion equation elementary digital circuit elementary dipole elementary directed circuit Elementary Direction elementary direction characteristic elementary direction characteristics elementary direction characteris-tics Elementary Discussions on Land Consolidation elementary displacement elementary distance elementary divisor elementary divisor ideal elementary divisor theorem Elementary Dragon Boat Badge Course elementary echo elementary econometrics elementary economic knowledge Elementary economics law elementary education