n.驱逐；开除；排出；喷出 变形： 复数：expulsions 英英释义： expulsion[ ik'spʌlʃən ]n.the act of forcing out someone or something"the child's expulsion from school"同义词：ejectionexclusionriddancesqueezing out by applying pressure"the expulsion of pus from the pimple"同义词：extrusion