短語詞組短語vacuous s 空虛的vacuous occurrence 繙譯;空出現(xiàn)vacuous space 真空區(qū)域vacuous basis [數(shù)]空基vacuous pulse 虛脈vacuous vessel 虛脈vacuous quantifier [數(shù)]空量詞vacuous assertion [數(shù)]空斷定 返回 vacuous