momentary high-power effort

例句：

1. 1.The momentary joy of winning the lotteryquickly faded away.
   赢得彩票的短暂喜悦很快就消失了。
2. 2. The momentary lapsein concentration led to a costly mistake.
   一时的分心导致了一个昂贵的错误。
3. 3. Themomentary flash of lightning illuminated thedark night sky.
   闪电的一瞬照亮了黑暗的夜空。