单词	file back-up
释义	file back-up [计] 文件备份
随便看	sealed in fuel element sealed-in fuel element sealed-in fuel unit sealed-in motor sealed in motor sealed-in nozzles sealed instrument sealed instruments sealed insulation sealed in unit sealed-in unit sealed jet sealed joint sealed journal bearing insert bit sealed junction sealed knob sealed lead acid battery sealed letter sealed light valve sealed liner shell assembly sealed lithiam battery sealed medium sealed mercury barometer sealed meter sealed mica ring 槁4 槁形灰心槁木死灰槁苏暍醒槁项没齿槁项黄馘槁项黧馘槂槃槃1 チンチンチンチンカモカモチンツウチンツウチンテイチンデンチントチントウチンドンヤチンドン屋