单词	fill a vacuum
释义	fill a vacuum 填补真空
随便看	long-form bill of lading long-form bills of lading Long Form B/L long-form floating point long-form journalism long form leptin receptor long-form mortgage clause long form of length Long form of Leptin receptor long-form periodic table long form report long-form report long-forms Long formula long for peace long for the festival long for the happy days to come long for the holidays long for the past Long for the simple life Long Forties Long forward long for your good voice long fractional hop whistler Long-fragment