combust[kəm'bʌst]vt.1.■烧,消耗(燃料):Machines are delivering up to only 25 percent of the fuel they combust.机器的运转效率只能达到所耗燃料的百分之二十五。2.■使燃烧,烧毁vi.1.■消耗燃料,被消耗:The engine regularly combusted.这台引擎耗油状况完全正常。2.■烧起来,冒火苗