“瞬间的”的英语可以翻译为：instantaneous，momentary ...

他说，士兵们必须要在开火之前作出瞬间的决定。Soldiers had to make split-second decisions before opening fire, he said.先是一阵疼痛，接着一股瞬间的剧痛沿着丹洛的脊柱窜了上来。There was a pain then, a quick, blinding agony that jumped along Danlo's spine.灵魂在逝去的瞬间的镜子中看...