sustaining造句
Thechainreactionisself-sustaining.Allthiswillplayanimportantroleinsustainingeconomicdevelopment.Ourlungsfueluswithoxygen,thebody'slife-sustaininggas.Evenso,mostkerbsiderecyclingprogrammesarenotfinanc...
Thechainreactionisself-sustaining.Allthiswillplayanimportantroleinsustainingeconomicdevelopment.Ourlungsfueluswithoxygen,thebody'slife-sustaininggas.Evenso,mostkerbsiderecyclingprogrammesarenotfinanc...